332354 + Interview Questions in Secondary School in Math

1.	48 men can do piece of work in 15 days in how many days 15 works can do work
Answer» Answer: 4815/15=48 THEREFORE=* 15 WORK can be DONE in 48 DAYS

1.

48 men can do piece of work in 15 days in how many days 15 works can do work

Answer»

Answer:

48*15/15=48 THEREFORE= 15 WORK can be DONE in 48 DAYS

Discussion

2.	(a2 – a) (4a2 - 4a - 5) - 6 fast please...I wil mark as the brainelest.comlusary...
Answer» ANSWER: this is the answer of the FOLLOWING QUESTION

2.

(a2 – a) (4a2 - 4a - 5) - 6 fast please...I wil mark as the brainelest.comlusary...

Answer»

ANSWER:

this is the answer of the FOLLOWING QUESTION

Discussion

3.	A=3, b= -5, c=6, evaluate the following: a(3c-b) *
Answer» Step-by-step EXPLANATION: a=3 b=-5 c=6 Evaluate: a(3c-b) 3(3×6-(-5)) 3(18+5) 3×23 69 ANS

3.

A=3, b= -5, c=6, evaluate the following: a(3c-b) *

Answer»

Step-by-step EXPLANATION:

a=3

b=-5

c=6

Evaluate:

a(3c-b)

3(3×6-(-5))

3(18+5)

3×23

69 ANS

Discussion

4.	For evey 3 girls there are five boys what is the ratio of girls simplest form
Answer» Step-by-step explanation: 3:5.....................

4.

For evey 3 girls there are five boys what is the ratio of girls simplest form

Answer»

Step-by-step explanation:

3:5.....................

Discussion

5.	If 1 is zero of 3 x cube - x square - 3 x + 1 then the other two zeros are
Answer» ANSWER: I HOPE it's HELP you..................

5.

If 1 is zero of 3 x cube - x square - 3 x + 1 then the other two zeros are

Answer»

ANSWER:

I HOPE it's HELP you..................

Discussion

6.	a box contains 4 red balls 5 green balls and some white balls if the probability of red ball is 1 by 3 then number of white balls are
Answer» Answer: There are 3 WHITE balls Step-by-step explanation: GIVEN: Number of red balls=4 Number of Green balls=5 Probability of red ball=1/3 To find : Number of white balls. Solution: LET the TOTAL number of balls be X and total number of white balls be W. Probability of the red balls = (Number of red balls) ÷ (total number of balls) 1/3=4/X X=4×3=12 The total number of balls are 12. As we know that there are white Red and Green balls, The total number of balls = red balls+green balls+white balls 12=4+5+W 12=9+W -W=9-12 -W=(-3) W=3 Ans : Thus, there are 3 white balls.

6.

a box contains 4 red balls 5 green balls and some white balls if the probability of red ball is 1 by 3 then number of white balls are

Answer»

Answer:

There are 3 WHITE balls

Step-by-step explanation:

GIVEN:

Number of red balls=4

Number of Green balls=5

Probability of red ball=1/3

To find :

Number of white balls.

Solution:

LET the TOTAL number of balls be X and total number of white balls be W.

Probability of the red balls =

(Number of red balls) ÷

(total number of balls)

1/3=4/X

X=4×3=12

The total number of balls are 12.

As we know that there are white Red and Green balls,

The total number of balls =

red balls+green balls+white balls

12=4+5+W

12=9+W

-W=9-12

-W=(-3)

W=3

Ans : Thus, there are 3 white balls.

Discussion

7.	What is the numerical coefficient of x2y2
Answer» ANSWER: 2 Step-by-step EXPLANATION: I HOPE it is RIGHT answer

7.

What is the numerical coefficient of x2y2

Answer»

ANSWER:

2

Step-by-step EXPLANATION:

I HOPE it is RIGHT answer

Discussion

8.	,12,36,150,392,1452,?
Answer» Answer: PLZ make PROPER QUESTION and re-send. *PLZ* *FOLLOW* ME *AND* *THANK* *AND* *MARK* AS *BRAINLLIST* *ANSWERS*.

8.

,12,36,150,392,1452,?

Answer»

Answer:

PLZ make PROPER QUESTION and re-send.

PLZ FOLLOW ME AND THANK AND MARK AS BRAINLLIST ANSWERS.

Discussion

9.	The diagram shows a rectangle ABCD with a square of side x cm removed.AP=3cm and QC=4 cm.a)Find,in terms of x,an expression for the area of the shaded rectangle APSDb)the area of the shaded rectangle APSD is double the area of the unshaded rectangle RQCS.i)form an equation in x and solve it.ii)Hence find the area of the shaded rectangle.
Answer» Step-by-step EXPLANATION: Here's your answer. Hope, it helps. please FOLLOW me. Mark it as BRAINLIEST.

9.

The diagram shows a rectangle ABCD with a square of side x cm removed.AP=3cm and QC=4 cm.a)Find,in terms of x,an expression for the area of the shaded rectangle APSDb)the area of the shaded rectangle APSD is double the area of the unshaded rectangle RQCS.i)form an equation in x and solve it.ii)Hence find the area of the shaded rectangle.

Answer»

Step-by-step EXPLANATION:

Here's your answer.

Hope, it helps.

please FOLLOW me.

Mark it as BRAINLIEST.

Discussion

10.	If the ratio of areas of two equilateral Triangles is 25: 36 then the ratio of height is
Answer» Answer: Step-by-step EXPLANATION: area of an EQUILATERAL triangle =SQRT(3)a^2/4 given (sqrt(3)a1^2/4)/(sqrt(3)a2^2/4)=25/36 a1^2/a2^2=25/36 a1/a2=5/6 height of an equlateral triangle is=sqrt(3)a/2 sqrt(3)a1/2)/(sqrt(3)a2/2)=? a1/a2=5/6

10.

If the ratio of areas of two equilateral Triangles is 25: 36 then the ratio of height is

Answer»

Answer:

Step-by-step EXPLANATION:

area of an EQUILATERAL triangle =SQRT(3)*a^2/4

given (sqrt(3)*a1^2/4)/(sqrt(3)*a2^2/4)=25/36

a1^2/a2^2=25/36

a1/a2=5/6

height of an equlateral triangle is=sqrt(3)*a/2

sqrt(3)*a1/2)/(sqrt(3)*a2/2)=?

a1/a2=5/6

Discussion

11.	26-2ab(2) please comment fast the ans
Answer» ANSWER: So 2(13-ab) Step-by-step EXPLANATION: This is the answer

11.

26-2ab(2) please comment fast the ans

Answer»

ANSWER:

So 2(13-ab)

Step-by-step EXPLANATION:

This is the answer

Discussion

12.	The maximum and minimum temperature at place p are 32 degree Celsius and -3 degree Celsius respectively and another place Q the temperature are 30 degree Celsius and 2 degree Celsius respectively which place records a greater fall in temperature by how much
Answer» ANSWER: PLEASE mark it as brainliest answer if you LIKE the answer and follow me ☺️☺️

12.

The maximum and minimum temperature at place p are 32 degree Celsius and -3 degree Celsius respectively and another place Q the temperature are 30 degree Celsius and 2 degree Celsius respectively which place records a greater fall in temperature by how much

Answer»

ANSWER:

PLEASE mark it as brainliest answer if you LIKE the answer and follow me ☺️☺️

Discussion

13.	a person buys national saving certificate of value exceeding of the last year purchase by rupees 100 after 12 years if find that the total value of certificate purchased by him is rs7200. find the value of the certificate purchased by him (1) in the first year (2) and in the eighth year.
Answer» let the initial VALUE be x ...! HOPE it HELPS !!

13.

a person buys national saving certificate of value exceeding of the last year purchase by rupees 100 after 12 years if find that the total value of certificate purchased by him is rs7200. find the value of the certificate purchased by him (1) in the first year (2) and in the eighth year.

Answer»

let the initial VALUE be x ...!

HOPE it HELPS !!

Discussion

14.	1.2% into simplest form
Answer» Answer: 1.2%=1.2/10010/10=12/1000=0.012... :) HOPE* you helps Mark me as BRAINLEST ✌️❤️✌️❤️

14.

1.2% into simplest form

Answer»

Answer:

1.2%=1.2/100*10/10=12/1000=0.012...

:) HOPE you helps

Mark me as BRAINLEST ✌️❤️✌️❤️

Discussion

15.	2 Sino + 2 Cos 20 - ?
Answer» Answer: 0.0655. Step-by-step EXPLANATION: PLEASE FOLLOW me BRO you follow me i follow you

15.

2 Sino + 2 Cos 20 - ?

Answer»

Answer:

0.0655.

Step-by-step EXPLANATION:

PLEASE FOLLOW me BRO you follow me i follow you

Discussion

16.	Use appropriate properties to find it ... 3/4-2/5-7/10+5/8
Answer» ANSWER: kya Bhai made property KI WATT LAGA dee..

16.

Use appropriate properties to find it ... 3/4-2/5-7/10+5/8

Answer»

ANSWER:

kya Bhai made property KI WATT LAGA dee..

Discussion

17.	Evaluate the following (minus 7 by 9) + 2 +( 65 minus 7 )minus 13 by
Answer» -7/9 + 2 + 65 - 7 - 13 = -7/9 + 67 - 20 = -7/9 + 47 = 416/9 = 46.222.... Hope it helps u Please MARK it as BRAINLEIST

17.

Evaluate the following (minus 7 by 9) + 2 +( 65 minus 7 )minus 13 by

Answer»

-7/9 + 2 + 65 - 7 - 13

= -7/9 + 67 - 20

= -7/9 + 47

= 416/9

= 46.222....

Hope it helps u

Please MARK it as BRAINLEIST

Discussion

18.	3 power minus 1 + 4 power minus 1 multiply 3 power 2
Answer» Answer: 31/2 Step-by-step explanation: 3^-1+4^-1(3^2) 1/3+1/4(9) 1/3+9/4 4+27/12 31/12

18.

3 power minus 1 + 4 power minus 1 multiply 3 power 2

Answer»

Answer:

31/2

Step-by-step explanation:

3^-1+4^-1(3^2)

1/3+1/4(9)

1/3+9/4

4+27/12

31/12

Discussion

19.	Q.19 Who among the following is known as “The Saint of Gutters”?(A) Baba Amte(B) Mother Teresa(C) Anna Hazare(D) None of these
Answer» ANSWER: MOTHER TERESA is the CORRECT answer

19.

Q.19 Who among the following is known as “The Saint of Gutters”?(A) Baba Amte(B) Mother Teresa(C) Anna Hazare(D) None of these

Answer»

ANSWER:

MOTHER TERESA is the CORRECT answer

Discussion

20.	Find each of the following products (1) 3×4×(-5)
Answer» Answer: 3×4×-5 12×-5 -60. ...........

20.

Find each of the following products (1) 3×4×(-5)

Answer»

Answer:

3×4×-5

12×-5

-60.

...........

Discussion

21.	Find the least number which must be subtracted from 2000 to make it a perfect square. Also find the square root of the perfect square number so obtained.
Answer» ANSWER: Step-by-step explanation: 2 2000 2 1000 2 500 2 250 5 125 5 25 5 2000=2×2×2×2×5×5×5

21.

Find the least number which must be subtracted from 2000 to make it a perfect square. Also find the square root of the perfect square number so obtained.

Answer»

ANSWER:

Step-by-step explanation:

2 2000

2 1000

2 500

2 250

5 125

5 25

5

2000=2×2×2×2×5×5×5

Discussion

22.	Write rationalising factors of √3
Answer» ANSWER: $\huge\mathcal{\pink{\boxed{\purple{heya}}}}$ -√3 will be it's RATIONALISING FACTOR.

22.

Write rationalising factors of √3

Answer»

ANSWER:

$\huge\mathcal{\pink{\boxed{\purple{heya}}}}$

-√3 will be it's RATIONALISING FACTOR.

Discussion

23.	If f(x) = mx + n, where m and n are integers f(-1) = -5 and f(3) = 3, then m and n are respectively
Answer» In First Condition f(x) = mx + n and f(-1) = -5 m(-1)+n= -5 -m+n=-5. ....(1) In Second Condition f(x) = mx + n and f(3) =3 m(3)+n=3 3m+n=3 .....(2) SUBTRACTING equation (2) from equation (1), we get -4m=-8 m=2 Substituting this value of m in equation (1), we get -2+n= -5 n=-5+2 n=-3

23.

If f(x) = mx + n, where m and n are integers f(-1) = -5 and f(3) = 3, then m and n are respectively

Answer»

In First Condition

f(x) = mx + n and f(-1) = -5

m(-1)+n= -5

-m+n=-5. ....(1)

In Second Condition

f(x) = mx + n and f(3) =3

m(3)+n=3

3m+n=3 .....(2)

SUBTRACTING equation (2) from equation (1), we get

-4m=-8

m=2

Substituting this value of m in equation (1), we get

-2+n= -5

n=-5+2

n=-3

Discussion

24.	Find the square root of 90 by estimation method
Answer» Step-by-step explanation: HOPE this answer will help you plzzzz mark me as BRAINLIEST plzzzzzzzzzzz and also follow me to get best maths answers ESPECIALLY for class 9 and 10 . ☆☆follow me ☆☆ __mathematics__genius

24.

Find the square root of 90 by estimation method

Answer»

Step-by-step explanation:

HOPE this answer will help you

plzzzz mark me as BRAINLIEST plzzzzzzzzzzz

and also follow me to get best maths answers ESPECIALLY for class 9 and 10 .

☆☆follow me ☆☆

__mathematics__genius

Discussion

25.	18. Surface area of closed right cylinder is____.
Answer» ANSWER: a=l+ t +B =2πrh +(2πr SQUARE) =2πr (h+r)

25.

18. Surface area of closed right cylinder is____.

Answer»

ANSWER:

a=l+ t +B =2πrh +(2πr SQUARE) =2πr (h+r)

Discussion

26.	X-5/3=x-3/5 solve this equation
Answer» Step-by-step EXPLANATION: X-5/3=x-3/5 5(x-5)=3(x-3) 5x-25=3x-9 5x-3x=-9+25 2x=16 X=8 is the correct answer Hope it is HELPFUL and MARK me as BRAINLIEST if you SATISFIED from my answer

26.

X-5/3=x-3/5 solve this equation

Answer»

Step-by-step EXPLANATION:

X-5/3=x-3/5

5(x-5)=3(x-3)

5x-25=3x-9

5x-3x=-9+25

2x=16

X=8 is the correct answer

Hope it is HELPFUL and MARK me as BRAINLIEST if you SATISFIED from my answer

Discussion

27.	Prove that((1+cot a + tan a) (sin a-cos a))/cot^3a - cosec^3 a = sin^2a.cos^2a
Answer» ANSWER: your answer ATTACHED in the PHOTO

27.

Prove that((1+cot a + tan a) (sin a-cos a))/cot^3a - cosec^3 a = sin^2a.cos^2a

Answer»

ANSWER:

your answer ATTACHED in the PHOTO

Discussion

28.	There are seven basic symbol to write any numerals
Answer» Answer: Here it is. PLEASE follow me and mark as BRAINLIEST! :):) BEST of luck. Step-by-step explanation: There are seven basic SYMBOLS: I, V, X, L, C, D and M. The first usage of the symbols began SHOWING up between 900 and 800 B.C. The numerals developed out of a need for a common method of counting, essential to communications and trade.

28.

There are seven basic symbol to write any numerals

Answer»

Answer:

Here it is. PLEASE follow me and mark as BRAINLIEST! :):) BEST of luck.

Step-by-step explanation:

There are seven basic SYMBOLS: I, V, X, L, C, D and M. The first usage of the symbols began SHOWING up between 900 and 800 B.C. The numerals developed out of a need for a common method of counting, essential to communications and trade.

Discussion

29.	Which line represents the relationship between c and d shown in the table?
Answer» Answer: i THINK u shuld SHOW me figure please MARK as brainliest and FOLLOW me dude

29.

Which line represents the relationship between c and d shown in the table?

Answer»

Answer:

i THINK u shuld SHOW me figure

please MARK as brainliest and FOLLOW me dude

Discussion

30.	Do fruits grow only on trees?
Answer» ANSWER: it's not NECESSARY because some fruits are grow in DIFFERENT places like inside the surface of soil....ETC.

30.

Do fruits grow only on trees?

Answer»

ANSWER:

it's not NECESSARY because some fruits are grow in DIFFERENT places like inside the surface of soil....ETC.

Discussion

31.	Ten year ago the ratio between the age of mohan and sumer was 3:5 11year hence it will be 11:16 what is present age of mohan
Answer» ANSWER: Here is your answer ☺️ Ten years AGO the ratio between the ages of MOHAN and Suman was 3:5. Hence their ages 10 years ago were 3x and 5x respectively. 11 years hence it will be 11:16. Suman's present age = 5x + 10 = 5 × 15 + 10 = 75 + 10 = 85 years

31.

Ten year ago the ratio between the age of mohan and sumer was 3:5 11year hence it will be 11:16 what is present age of mohan

Answer»

ANSWER:

Here is your answer ☺️

Ten years AGO the ratio between the ages of MOHAN and Suman was 3:5. Hence their ages 10 years ago were 3x and 5x respectively. 11 years hence it will be 11:16. Suman's present age = 5x + 10 = 5 × 15 + 10 = 75 + 10 = 85 years

Discussion

32.	Gavin and raj share a lottery win of £950 in the ratio of 1:4 gavin shares his part between himself, his wife and their son in the ratio of 5:3:2 how much does his wife get over their son
Answer» ANSWER: GAVIN+raj=(5x=£950 x=£190) gavin SHARE is =£190 gavin+his WIFE's +SON=(10x=£190) his wife share is=3x=3×£19 =£57

32.

Gavin and raj share a lottery win of £950 in the ratio of 1:4 gavin shares his part between himself, his wife and their son in the ratio of 5:3:2 how much does his wife get over their son

Answer»

ANSWER:

GAVIN+raj=(5x=£950

x=£190)

gavin SHARE is =£190

gavin+his WIFE's +SON=(10x=£190)

his wife share is=3x=3×£19

=£57

Discussion

33.	3x³+4x²-x+1 divided by -x+1
Answer» HOPE it HELPS............

Discussion

34.	Is 9.0231450043 a rational number?
Answer» ANSWER: YES BKZ this is wirren in p/q so this is a R.N

34.

Is 9.0231450043 a rational number?

Answer»

ANSWER:

YES BKZ this is wirren in p/q so this is a R.N

Discussion

35.	If a = 4x²-5y² b = -4x²-5y² then find a-bif u answer correct i make them brainlist
Answer» ANSWER: HEY MATE here is your answer ☝️☝️

35.

If a = 4x²-5y² b = -4x²-5y² then find a-bif u answer correct i make them brainlist

Answer»

ANSWER:

HEY MATE here is your answer ☝️☝️

Discussion

36.	(Sin65+cos25) (sin65-cos25) =0
Answer» Answer: Hey FRIEND here's your answer. Step-by-step EXPLANATION: PLEASE MARK ME AS BRAINLIEST

36.

(Sin65+cos25) (sin65-cos25) =0

Answer»

Answer:

Hey FRIEND here's your answer.

Step-by-step EXPLANATION:

PLEASE MARK ME AS BRAINLIEST

Discussion

37.	The average price of 12 product increases by Rs 10 when a new product is replaced with an product, price of which was Rs 105. What would be the price of the new product
Answer» Answer: your answer is 225 I HOPE you will SURE please mark as BRAINLEAST

37.

The average price of 12 product increases by Rs 10 when a new product is replaced with an product, price of which was Rs 105. What would be the price of the new product

Answer»

Answer:

your answer is 225 I HOPE you will SURE

please mark as BRAINLEAST

Discussion

38.	_____probability does not require toperform any event
Answer» Step-by-step EXPLANATION: PLZ FOLLOW mae 100% PROBABLITY

38.

_____probability does not require toperform any event

Answer»

Step-by-step EXPLANATION:

PLZ FOLLOW mae

100% PROBABLITY

Discussion

39.	If \|x-3\|
Answer» ANSWER: HOPE it is HELPFUL for you

39.

If |x-3|

Answer»

ANSWER:

HOPE it is HELPFUL for you

Discussion

40.	Find the area of rhombus whose one diagonal is 7cm and other diagonal is double of first diagonal
Answer» AREA OF RHOMBUS:- $\frac{1}{2} \times d1 \times d2$ $\frac{1}{2} \times 7cm \times \: d2$ 7/2

40.

Find the area of rhombus whose one diagonal is 7cm and other diagonal is double of first diagonal

Answer»

AREA OF RHOMBUS:-

$\frac{1}{2} \times d1 \times d2$

$\frac{1}{2} \times 7cm \times \: d2$

7/2

Discussion

41.	Sections AB and CD are proportional to sections A1B1 and C1D1. Calculate the length of the segment AB, if CD = 14 cm and A1B1: C1D1= 3 : 4
Answer» Answer: 3624 is the ratio of A1 B1 is 271 MEANS a b equal to CD then the proposal section A1 b1 and the calculation is the length of a b and C d series 14 TOTAL length is 100

41.

Sections AB and CD are proportional to sections A1B1 and C1D1. Calculate the length of the segment AB, if CD = 14 cm and A1B1: C1D1= 3 : 4

Answer»

Answer:

3624 is the ratio of A1 B1 is 271 MEANS a b equal to CD then the proposal section A1 b1 and the calculation is the length of a b and C d series 14 TOTAL length is 100

Discussion

42.	Roshan walks towards North for 15 m and from there he goes right-hand side for 10mand again turns right-hand side for 5 m. He is in which direction?
Answer» Answer: If you are asking that which SIDE his face will be FACING, then he will be facing towards SOUTH.

42.

Roshan walks towards North for 15 m and from there he goes right-hand side for 10mand again turns right-hand side for 5 m. He is in which direction?

Answer»

Answer: If you are asking that which SIDE his face will be FACING, then he will be facing towards SOUTH.

Discussion

43.	102Find the value of4 5o în6
Answer» Step-by-step EXPLANATION: this is CORRECT QUESTION

43.

102Find the value of4 5o în6

Answer»

Step-by-step EXPLANATION:

this is CORRECT QUESTION

Discussion

44.	Find the multiplicative inverse on the following _13/19
Answer» ANSWER: the MULTIPLICATIVE INVERSE is 19/13...

44.

Find the multiplicative inverse on the following _13/19

Answer»

ANSWER:

the MULTIPLICATIVE INVERSE is 19/13...

Discussion

45.	Can any one solve this Assignment.
Answer» ANSWER: N Step-by-step EXPLANATION: o o

45.

Can any one solve this Assignment.

Answer»

ANSWER:

N

Step-by-step EXPLANATION:

o o

Discussion

46.	Write the first whole number in the tens place.
Answer» ANSWER: 2,4,6,8,10 is the CORRECT answer

46.

Write the first whole number in the tens place.

Answer»

ANSWER:

2,4,6,8,10 is the CORRECT answer

Discussion

47.	Find reminder of (x^10-2x^5+3)/(2x-4)
Answer» *ANSWER IS IN THE PHOTO CHECK!!!!!!*

47.

Find reminder of (x^10-2x^5+3)/(2x-4)

Answer»

ANSWER IS IN THE PHOTO CHECK!!!!!!

Discussion

48.	if the metallic cylinder of height 4 cm and radius 3cm is melted and cast into a sphere then the radius of sphere is
Answer» Given : Height of metallic cylinder is 4 cm. Radius of cylinder is 3 cm. It is melted and casted into a sphere. To FIND : Radius of the sphere. Solution : WHENEVER an object is melted and recasted into a new object, the volume of the initial object and the new object so formed is equal. Here, we have the radius and height of cylinder. Calculate the volume of the cylinder using the FORMULA. Formula : $\large{\boxed{\bold{\purple{Volume_{cylinder}\:=\:\pi\:r^2\:h}}}}$ Here, r = radius of cylinder = 3 cm h = height of cylinder = 5 cm Block in the DATA, $\sf{Volume_{cylinder}\:=\:\pi\:3^2\:\times\:4}$ $\sf{Volume_{cylinder}\:=\:\pi\:\times\:9\:\times\:4}$ $\sf{Volume_{cylinder}\:=\:\pi\:\times\:36}$ $\sf{Volume_{cylinder}\:=\:36\:\pi}$ Now, volume of cylinder will be equal to the volume of sphere. $\large{\boxed{\bold{\purple{Volume_{cylinder}\:=\:Volume_{sphere}}}}}$ $\longrightarrow$ $\sf{\:\pi\:r^2\:h\:=\:\dfrac{4}{3}\:\pi\:r^3\:}$ $\longrightarrow$ $\sf{\:36\:\pi\:=\:\dfrac{4}{3}\:\pi\:r^3\:}$ $\longrightarrow$ $\sf{36\:=\:\dfrac{4}{3}\:r^3\:}$ $\longrightarrow$ $\sf{\:36\:\times\:3\:=\:4\:r^3\:}$ $\longrightarrow$ $\sf{108\:=\:4\:r^3}$ $\longrightarrow$ $\sf{\dfrac{108}{4}=r^3}$ $\longrightarrow$ $\sf{27=r^3}$ $\longrightarrow$ $\sf{^3\sqrt{27}=r}$ $\longrightarrow$ $\sf{r=3}$ $\large{\boxed{\bold{\purple{Radius\:of\:sphere\:=\:3cm}}}}$

48.

if the metallic cylinder of height 4 cm and radius 3cm is melted and cast into a sphere then the radius of sphere is

Answer»

Given :

Height of metallic cylinder is 4 cm.
Radius of cylinder is 3 cm.
It is melted and casted into a sphere.

To FIND :

Radius of the sphere.

Solution :

WHENEVER an object is melted and recasted into a new object, the volume of the initial object and the new object so formed is equal.

Here, we have the radius and height of cylinder.

Calculate the volume of the cylinder using the FORMULA.

Formula :

$\large{\boxed{\bold{\purple{Volume_{cylinder}\:=\:\pi\:r^2\:h}}}}$

Here,

r = radius of cylinder = 3 cm
h = height of cylinder = 5 cm

Block in the DATA,

$\sf{Volume_{cylinder}\:=\:\pi\:3^2\:\times\:4}$

$\sf{Volume_{cylinder}\:=\:\pi\:\times\:9\:\times\:4}$

$\sf{Volume_{cylinder}\:=\:\pi\:\times\:36}$

$\sf{Volume_{cylinder}\:=\:36\:\pi}$

Now, volume of cylinder will be equal to the volume of sphere.

$\large{\boxed{\bold{\purple{Volume_{cylinder}\:=\:Volume_{sphere}}}}}$

$\longrightarrow$ $\sf{\:\pi\:r^2\:h\:=\:\dfrac{4}{3}\:\pi\:r^3\:}$

$\longrightarrow$ $\sf{\:36\:\pi\:=\:\dfrac{4}{3}\:\pi\:r^3\:}$

$\longrightarrow$ $\sf{36\:=\:\dfrac{4}{3}\:r^3\:}$

$\longrightarrow$ $\sf{\:36\:\times\:3\:=\:4\:r^3\:}$

$\longrightarrow$ $\sf{108\:=\:4\:r^3}$

$\longrightarrow$ $\sf{\dfrac{108}{4}=r^3}$

$\longrightarrow$ $\sf{27=r^3}$

$\longrightarrow$ $\sf{^3\sqrt{27}=r}$

$\longrightarrow$ $\sf{r=3}$

$\large{\boxed{\bold{\purple{Radius\:of\:sphere\:=\:3cm}}}}$

Discussion

49.	Find the zeroes of the following quadric polynomials and verify the relationship between the zeroes and the coefficient sA)2√2x^2-9x+5√2
Answer» Answer: HEY there GO to rs aggarwal CLASS 10 ch quadratic equation...

49.

Find the zeroes of the following quadric polynomials and verify the relationship between the zeroes and the coefficient sA)2√2x^2-9x+5√2

Answer»

Answer:

HEY there GO to rs aggarwal CLASS 10 ch quadratic equation...

Discussion

50.	32 x 31 4 221 -2 F ilthen find the value of ‘’’
Answer» Answer: in as t TV Ryde and Uske to yojak to yojak to the respiration willh to be able to yojak and Uske to be in our mast cells in our mast cells were harvested by the respiration and it means that the SUN was setting up a time for you to yojak the same is less than a jate and Uske to be a time that is lack of oxygen in the future of our games to yojak to yojak the respiration and mitochondria Step-by-step explanation: gjgjvgbgnvjkkhh the respiration and it means to yojak and mitochondria is lack the ability to yojak and it is a time that is lack of a jate and mitochondria to be a good time for w and r to the same to yojak and it means to yojak to the same is lack of oxygen in our lives to be a jate to yojak and mitochondria is a jate to the ghf the sun was SHINING in the respiration will not be a time that is called against a good day please see the attached document and mitochondria is lack the ability of the same to the respiration and it was setting up the good news from me please give me the opportunity to yojak in our mast cells and you can be a real tuition FEE for the same is true that will HELP in any way I can you please give me a CALL to the same is

50.

32 x 31 4 221 -2 F ilthen find the value of ‘’’

Answer»

Answer:

in as t TV Ryde and Uske to yojak to yojak to the respiration willh to be able to yojak and Uske to be in our mast cells in our mast cells were harvested by the respiration and it means that the SUN was setting up a time for you to yojak the same is less than a jate and Uske to be a time that is lack of oxygen in the future of our games to yojak to yojak the respiration and mitochondria

Step-by-step explanation:

gjgjvgbgnvjkkhh the respiration and it means to yojak and mitochondria is lack the ability to yojak and it is a time that is lack of a jate and mitochondria to be a good time for w and r to the same to yojak and it means to yojak to the same is lack of oxygen in our lives to be a jate to yojak and mitochondria is a jate to the

ghf the sun was SHINING in the respiration will not be a time that is called against a good day please see the attached document and mitochondria is lack the ability of the same to the respiration and it was setting up the good news from me please give me the opportunity to yojak in our mast cells and you can be a real tuition FEE for the same is true that will HELP in any way I can you please give me a CALL to the same is

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

48 men can do piece of work in 15 days in how many days 15 works can do work​

(a2 – a) (4a2 - 4a - 5) - 6​ fast please...I wil mark as the brainelest.comlusary...

A=3, b= -5, c=6, evaluate the following: a(3c-b) *

For evey 3 girls there are five boys what is the ratio of girls simplest form

If 1 is zero of 3 x cube - x square - 3 x + 1 then the other two zeros are​

ANSWER:

I HOPE it's HELP you..................

a box contains 4 red balls 5 green balls and some white balls if the probability of red ball is 1 by 3 then number of white balls are​

What is the numerical coefficient of x2y2​

,12,36,150,392,1452,?​

If the ratio of areas of two equilateral Triangles is 25: 36 then the ratio of height is ​

26-2ab(2) please comment fast the ans​

The maximum and minimum temperature at place p are 32 degree Celsius and -3 degree Celsius respectively and another place Q the temperature are 30 degree Celsius and 2 degree Celsius respectively which place records a greater fall in temperature by how much

a person buys national saving certificate of value exceeding of the last year purchase by rupees 100 after 12 years if find that the total value of certificate purchased by him is rs7200. find the value of the certificate purchased by him (1) in the first year (2) and in the eighth year.​

1.2% into simplest form​

2 Sino + 2 Cos 20 - ?​

Use appropriate properties to find it ... 3/4-2/5-7/10+5/8​

Evaluate the following (minus 7 by 9) + 2 +( 65 minus 7 )minus 13 by​

3 power minus 1 + 4 power minus 1 multiply 3 power 2​

Q.19 Who among the following is known as “The Saint of Gutters”?(A) Baba Amte(B) Mother Teresa(C) Anna Hazare(D) None of these​

Find each of the following products (1) 3×4×(-5)​

Find the least number which must be subtracted from 2000 to make it a perfect square. Also find the square root of the perfect square number so obtained.​

Write rationalising factors of √3​

-√3 will be it's RATIONALISING FACTOR.

If f(x) = mx + n, where m and n are integers f(-1) = -5 and f(3) = 3, then m and n are respectively​

m=2

n=-3

Find the square root of 90 by estimation method

☆☆follow me ☆☆

18. Surface area of closed right cylinder is____.

X-5/3=x-3/5 solve this equation

Prove that((1+cot a + tan a) (sin a-cos a))/cot^3a - cosec^3 a = sin^2a.cos^2a

There are seven basic symbol to write any numerals

Which line represents the relationship between c and d shown in the table?

Do fruits grow only on trees?

Ten year ago the ratio between the age of mohan and sumer was 3:5 11year hence it will be 11:16 what is present age of mohan

Here is your answer ☺️

Gavin and raj share a lottery win of £950 in the ratio of 1:4 gavin shares his part between himself, his wife and their son in the ratio of 5:3:2 how much does his wife get over their son

3x³+4x²-x+1 divided by -x+1

HOPE it HELPS............

Is 9.0231450043 a rational number?

If a = 4x²-5y² b = -4x²-5y² then find a-b​if u answer correct i make them brainlist

HEY MATE here is your answer ☝️☝️

(Sin65+cos25) (sin65-cos25) =0

Hey FRIEND here's your answer.

PLEASE MARK ME AS BRAINLIEST

The average price of 12 product increases by Rs 10 when a new product is replaced with an product, price of which was Rs 105. What would be the price of the new product

_____probability does not require toperform any event

If |x-3|

Find the area of rhombus whose one diagonal is 7cm and other diagonal is double of first diagonal​

Sections AB and CD are proportional to sections A1B1 and C1D1. Calculate the length of the segment AB, if CD = 14 cm and A1B1: C1D1= 3 : 4

Roshan walks towards North for 15 m and from there he goes right-hand side for 10mand again turns right-hand side for 5 m. He is in which direction?​

102Find the value of4 5o în6​

Find the multiplicative inverse on the following _13/19​

Can any one solve this Assignment. ​

N

Write the first whole number in the tens place.​

Find reminder of (x^10-2x^5+3)/(2x-4)

ANSWER IS IN THE PHOTO CHECK!!!!!!

if the metallic cylinder of height 4 cm and radius 3cm is melted and cast into a sphere then the radius of sphere is​

Find the zeroes of the following quadric polynomials and verify the relationship between the zeroes and the coefficient sA)2√2x^2-9x+5√2

32 x 31 4 221 -2 F ilthen find the value of ‘’’​

48 men can do piece of work in 15 days in how many days 15 works can do work

(a2 – a) (4a2 - 4a - 5) - 6 fast please...I wil mark as the brainelest.comlusary...

If 1 is zero of 3 x cube - x square - 3 x + 1 then the other two zeros are

a box contains 4 red balls 5 green balls and some white balls if the probability of red ball is 1 by 3 then number of white balls are

What is the numerical coefficient of x2y2

,12,36,150,392,1452,?

If the ratio of areas of two equilateral Triangles is 25: 36 then the ratio of height is

26-2ab(2) please comment fast the ans

a person buys national saving certificate of value exceeding of the last year purchase by rupees 100 after 12 years if find that the total value of certificate purchased by him is rs7200. find the value of the certificate purchased by him (1) in the first year (2) and in the eighth year.

1.2% into simplest form

2 Sino + 2 Cos 20 - ?

Use appropriate properties to find it ... 3/4-2/5-7/10+5/8

Evaluate the following (minus 7 by 9) + 2 +( 65 minus 7 )minus 13 by

3 power minus 1 + 4 power minus 1 multiply 3 power 2

Q.19 Who among the following is known as “The Saint of Gutters”?(A) Baba Amte(B) Mother Teresa(C) Anna Hazare(D) None of these

Find each of the following products (1) 3×4×(-5)

Find the least number which must be subtracted from 2000 to make it a perfect square. Also find the square root of the perfect square number so obtained.

Write rationalising factors of √3

If f(x) = mx + n, where m and n are integers f(-1) = -5 and f(3) = 3, then m and n are respectively

If a = 4x²-5y² b = -4x²-5y² then find a-bif u answer correct i make them brainlist

Find the area of rhombus whose one diagonal is 7cm and other diagonal is double of first diagonal

Roshan walks towards North for 15 m and from there he goes right-hand side for 10mand again turns right-hand side for 5 m. He is in which direction?

102Find the value of4 5o în6

Find the multiplicative inverse on the following _13/19

Can any one solve this Assignment.

Write the first whole number in the tens place.

if the metallic cylinder of height 4 cm and radius 3cm is melted and cast into a sphere then the radius of sphere is

32 x 31 4 221 -2 F ilthen find the value of ‘’’