332354 + Interview Questions in Secondary School in Math

1.	(-5)+(-5)............upto 100
Answer» ONG>ANSWER: -500 Step-by-step explanation: (-5)*100 = -500 Therefore the answer is -500.

1.

(-5)+(-5)............upto 100

Answer» ONG>ANSWER:

-500

Step-by-step explanation:

(-5)*100

= -500

Therefore the answer is -500.

Discussion

2.	Find the number of arrangements of the letters of the word EXAMINATION. In how many of these 1-21 arrangements, (i) Do all the vowels always occur together? (ii) Do the vowels never occur together? (iii) Do the words begin with E and end with N?
Answer» ong>Answer: examination, EXAM ,eon ,ion, NATION , ant Step-by-step explanation: examination is a TYPE of exam or test

2.

Find the number of arrangements of the letters of the word EXAMINATION. In how many of these 1-21 arrangements, (i) Do all the vowels always occur together? (ii) Do the vowels never occur together? (iii) Do the words begin with E and end with N?

Answer»

ong>Answer:

examination, EXAM ,eon ,ion, NATION ,

ant

Step-by-step explanation:

examination is a TYPE of exam or test

Discussion

3.	Which is of the following decimal expansion of irrigation
Answer» ⫷ANSWER⫸⫷⎠⎠ The DECIMAL expansion of a number is its representation in base-10 (i.e., in the decimal SYSTEM). In this system, each "decimal place" consists of a digit 0-9 ARRANGED such that each digit is MULTIPLIED by a power of 10, decreasing from left to right, and with a decimal place indicating the s place. Hope this will help you♥

3.

Which is of the following decimal expansion of irrigation

Answer»

⫷ANSWER⫸⫷⎠⎠

The DECIMAL expansion of a number is its representation in base-10 (i.e., in the decimal SYSTEM). In this system, each "decimal place" consists of a digit 0-9 ARRANGED such that each digit is MULTIPLIED by a power of 10, decreasing from left to right, and with a decimal place indicating the s place.

Hope this will help you♥

Discussion

4.	Haii sir I want sir is I tell him to send me to send you a large number in whole life and
Answer» ONG>Step-by-step EXPLANATION: Thx for free points ........

Discussion

5.	Which of the following is irrational number?? A.√1.44 B.√144 C.0.30300300033..... D.√64
Answer» ong>Answer: d . please MAKE me brainlist DEAR and FOLLOW me

5.

Which of the following is irrational number?? A.√1.44 B.√144 C.0.30300300033..... D.√64

Answer»

ong>Answer:

d .

please MAKE me brainlist DEAR and FOLLOW me

Discussion

6.	What quotient will you get when the placevalue of 6 is divided by is face value in the number 46,35,009?
Answer» ONG>Step-by-step EXPLANATION: PLACE VALUE is lakh face value is 6 lakh÷6

6.

What quotient will you get when the placevalue of 6 is divided by is face value in the number 46,35,009?

Answer» ONG>Step-by-step EXPLANATION:

PLACE VALUE is lakh

face value is 6

lakh÷6

Discussion

7.	Find the smallest 5digit number which when divided by 5,7 or 9 leaves 2 as the remainder
Answer» ong>Answer: FIRST we need to find out a 5 DIGIT NUMBER which would be divisible by 5,7,9 So, (5-2) = 3 (7-2) = 5 (9-2) = 7 LCM = 3x5x7 = 105 Smallest 5 digit number would be 10000 SO, 10000/105 = we get 9975 as quotient and 25 as remainder. So 9975 is the number completely divisible by 105 but its a 4 digit number so we need to add 105 to it so, 9975 + 105 = 10080 is the least 5 digit number completely divisible by 105. But we need a number which leaves remainder 2 so, 10080 + 2 = 10082 is the number we want which when divided by 5,7,9 will LEAVE remainder 2. please mark me as the brainlest

7.

Find the smallest 5digit number which when divided by 5,7 or 9 leaves 2 as the remainder

Answer»

ong>Answer:

FIRST we need to find out a 5 DIGIT NUMBER which would be divisible by 5,7,9

So, (5-2) = 3

(7-2) = 5

(9-2) = 7

LCM = 3x5x7 = 105

Smallest 5 digit number would be 10000

SO, 10000/105 = we get 9975 as quotient and 25 as remainder.

So 9975 is the number completely divisible by 105 but its a 4 digit number so we need to add 105 to it so, 9975 + 105 = 10080 is the least 5 digit number completely divisible by 105.

But we need a number which leaves remainder 2 so,

10080 + 2 = 10082 is the number we want which when divided by 5,7,9 will LEAVE remainder 2.

please mark me as the brainlest

Discussion

8.	All equilateral triangle are isosceles, but all isosceles triangle are not equilateral. Justify the statement
Answer» ong>Step-by-step explanation: Isosceles triangle: 2 SIDES equal. Equilateral triangle: 3 sides equal. Equilateral triangle is also isosceles because it has atleast 2 sides equal. But isosceles triangle is not equilateral because it doesn't have 3 sides equal. if you satisfied with my answer please mark me as brainest...

8.

All equilateral triangle are isosceles, but all isosceles triangle are not equilateral. Justify the statement

Answer»

ong>Step-by-step explanation:

Isosceles triangle: 2 SIDES equal. Equilateral triangle: 3 sides equal. Equilateral triangle is also isosceles because it has atleast 2 sides equal. But isosceles triangle is not equilateral because it doesn't have 3 sides equal.

if you satisfied with my answer please mark me as brainest...

Discussion

9.	Prove this (1+tanAtanB)^2 =(tanA-tanB)^2
Answer» are you TELLING not UNDERSTAND

Discussion

10.	The difference between the greatest and the smallest numbers which when rounded off to the nearest thousand as 9000, is 1 point
Answer» ONG>ANSWER: nine thousand nine hundred NINETY nine Step-by-step explanation: 9,999 is the answer ACCORDING to me

10.

The difference between the greatest and the smallest numbers which when rounded off to the nearest thousand as 9000, is 1 point

Answer» ONG>ANSWER:

nine thousand nine hundred NINETY nine

Step-by-step explanation:

9,999 is the answer ACCORDING to me

Discussion

11.	Please give me the answer with explaination
Answer» ONG>Step-by-step EXPLANATION: $\tt \int log(x+1)\:dx \\ \\ \tt Let\: x + 1 = t \\ \\ \tt Differentiating \: on \: both \: sides \\ \\ \tt dx = dt \\ \\ \tt \longrightarrow \int log t \: dt \\ \\ \tt Using \: by \: parts \\ \\ \tt Let\:u=logt \: \: \: v = 1 \\ \\ \tt \longrightarrow logt \int 1 dt - \int \frac{d(logt)}{dt} \int 1 dt \\ \\ \tt \longrightarrow logt . t- \int \frac{1}{t} . t \: dt \\ \\ \tt \longrightarrow tlogt - \int 1 dt \\ \\ \tt \longrightarrow tlogt - t + c \\ \\ \tt \longrightarrow (x+1)log(x+1) - (x+1) + c\\ \\ \tt \longrightarrow \boxed{\bold{\red{\tt \int log{x}^{2} = (x+1)log(x+1) - (x+1) + c }}}$

11.

Please give me the answer with explaination

Answer» ONG>Step-by-step EXPLANATION:

$\tt \int log(x+1)\:dx \\ \\ \tt Let\: x + 1 = t \\ \\ \tt Differentiating \: on \: both \: sides \\ \\ \tt dx = dt \\ \\ \tt \longrightarrow \int log t \: dt \\ \\ \tt Using \: by \: parts \\ \\ \tt Let\:u=logt \: \: \: v = 1 \\ \\ \tt \longrightarrow logt \int 1 dt - \int \frac{d(logt)}{dt} \int 1 dt \\ \\ \tt \longrightarrow logt . t- \int \frac{1}{t} . t \: dt \\ \\ \tt \longrightarrow tlogt - \int 1 dt \\ \\ \tt \longrightarrow tlogt - t + c \\ \\ \tt \longrightarrow (x+1)log(x+1) - (x+1) + c\\ \\ \tt \longrightarrow \boxed{\bold{\red{\tt \int log{x}^{2} = (x+1)log(x+1) - (x+1) + c }}}$

Discussion

12.	The coordinates of the vertices of a triangle ABC are A(2, 4), B(5, 1), C(-1, -1). find the equation of the median drawn from vertex A
Answer» $\underline{\textsf{Given:}}$ $\textsf{Vertices of triangle ABC are}$ $\textsf{A(2, 4), B(5, 1), C(-1, -1)}$ $\underline{\textsf{To find:}}$ $\textsf{The equation of median drawn from vertex A}$ $\underline{\textsf{Solution:}}$ $\textsf{Median from A is a line segment joining A and the midpoint}$ $\textsf{of the side BC}$ $\textsf{Midpoint of side BC}$ $\mathsf{(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2})}$ $\mathsf{(\dfrac{5+(-1)}{2},\dfrac{1+(-1)}{2})}$ $\mathsf{(\dfrac{4}{2},\dfrac{0}{2})}$ $\mathsf{(2,0)}$ $\textsf{Now}$ $\textsf{The equation of median drawn from A}$ $\textsf{is the equation of the line joining (2,4) and (2,0)}$ $\mathsf{\dfrac{y-y_1}{y_2-y_1}=\dfrac{x-x_1}{x_2-x_1}}$ $\mathsf{\dfrac{y-4}{0-4}=\dfrac{x-2}{2-2}}$ $\mathsf{\dfrac{y-4}{-4}=\dfrac{x-2}{0}}$ $\implies\boxed{\mathsf{x-2=0}}$ $\underline{\textsf{Answer:}}$ $\textsf{The equation of the median drawn from A is x-2=0}$

12.

The coordinates of the vertices of a triangle ABC are A(2, 4), B(5, 1), C(-1, -1). find the equation of the median drawn from vertex A

Answer»

$\underline{\textsf{Given:}}$

$\textsf{Vertices of triangle ABC are}$

$\textsf{A(2, 4), B(5, 1), C(-1, -1)}$

$\underline{\textsf{To find:}}$

$\textsf{The equation of median drawn from vertex A}$

$\underline{\textsf{Solution:}}$

$\textsf{Median from A is a line segment joining A and the midpoint}$

$\textsf{of the side BC}$

$\textsf{Midpoint of side BC}$

$\mathsf{(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2})}$

$\mathsf{(\dfrac{5+(-1)}{2},\dfrac{1+(-1)}{2})}$

$\mathsf{(\dfrac{4}{2},\dfrac{0}{2})}$

$\mathsf{(2,0)}$

$\textsf{Now}$

$\textsf{The equation of median drawn from A}$

$\textsf{is the equation of the line joining (2,4) and (2,0)}$

$\mathsf{\dfrac{y-y_1}{y_2-y_1}=\dfrac{x-x_1}{x_2-x_1}}$

$\mathsf{\dfrac{y-4}{0-4}=\dfrac{x-2}{2-2}}$

$\mathsf{\dfrac{y-4}{-4}=\dfrac{x-2}{0}}$

$\implies\boxed{\mathsf{x-2=0}}$

$\underline{\textsf{Answer:}}$

$\textsf{The equation of the median drawn from A is x-2=0}$

Discussion

13.	-3x*yz by –16a?y4638
Answer» ong>ANSWER: too much to do and what is the cost of the most part to do it do it do it do it do it do it do it do it do it do Step-by-step explanation: do you want to CONFIRM that you RECEIVED this EMAIL and healthy New year to you HAPPY birthday to you do you have a meeting at happy hour at the most part happy birthday to

13.

-3x*yz by –16a?y4638

Answer»

ong>ANSWER:

too much to do and what is the cost of the most part to do it do it do it do it do it do it do it do it do it do

Step-by-step explanation:

do you want to CONFIRM that you RECEIVED this EMAIL and healthy New year to you HAPPY birthday to you do you have a meeting at happy hour at the most part happy birthday to

Discussion

14.	Do long division :-500÷10
Answer» ONG>ANSWER: the answer is 50 Step-by-step explanation: PLS MARK me as Brainliest

14.

Do long division :-500÷10

Answer» ONG>ANSWER:

the answer is 50

Step-by-step explanation:

PLS MARK me as Brainliest

Discussion

15.	6 terms of the G.P. 1,-2/3,4/9,.....
Answer» ong>Answer: Sn = 261 or 2115/829 Step-by-step explanation: we KNOW that 1, 2/3 , 4/9. now. sñ = a( 1 -rñ ) / 1- R. *where* s = *sum* of n *terms* of gp , a = *first* *term* of gp , n= n *terms* of gp, r = *COMMON* *ratio* , now a = 1 common ratio = 2/3. 2/3 ÷1 = 2/3 we need to calculate the n terms of gp Sn = 1( 1- 2/3n ) / 1- 2/3 Sn = 1(1-2/3n) ÷ 3-2/3. Sn = 1(1-2n/3) ÷ 1/3 Sn = 3/1 ×(1-2/3n) . now the n terms =6 times of Sn. we get. putting n 6 = Sn. S6 = 3×(1-{2/3}both having square6 ) =. 3× (1- { 124/ 829} , = 3×( 829-124/829). =. 3( 705 / 829) = 3× 0.87. = 261 *answer* or 2115 / 829

15.

6 terms of the G.P. 1,-2/3,4/9,.....

Answer»

ong>Answer:

Sn = 261 or 2115/829

Step-by-step explanation:

we KNOW that 1, 2/3 , 4/9. now. sñ = a( 1 -rñ ) / 1- R. where s = sum of n terms of gp , a = first term of gp , n= n terms of gp, r = COMMON ratio , now a = 1 common ratio = 2/3. 2/3 ÷1 = 2/3 we need to calculate the n terms of gp Sn = 1( 1- 2/3n ) / 1- 2/3 Sn = 1(1-2/3n) ÷ 3-2/3. Sn = 1(1-2n/3) ÷ 1/3 Sn = 3/1 ×(1-2/3n) . now the n terms =6 times of Sn. we get. putting n 6 = Sn. S6 = 3×(1-{2/3}both having square6 ) =. 3× (1- { 124/ 829} , = 3×( 829-124/829). =. 3( 705 / 829) = 3× 0.87. = 261 answer or 2115 / 829

Discussion

16.	Derivative of sec 2x
Answer» ong>Answer: $\huge{\underline{\mathtt{\red{❥A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}$ We KNOW the derivative of g(x) = SEC x is g'(x) = SECX tanx, so we MULTIPLY 2SEC x by secx tanx to get our answer. We see that the derivative of sec 2 x is 2sec 2 x tan x.

16.

Derivative of sec 2x

Answer»

ong>Answer:

$\huge{\underline{\mathtt{\red{❥A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}$ We KNOW the derivative of g(x) = SEC x is g'(x) = SECX tanx, so we MULTIPLY 2SEC x by secx tanx to get our answer. We see that the derivative of sec 2 x is 2sec 2 x tan x.

Discussion

17.	How to convert into days 18/3
Answer» ONG>ANSWER: 9is the CORRECT answer in DAYS

Discussion

18.	ਰੱਬ ਜੀ ਮੈ ਨੀ ਕਹਿੰਦਾ ਮੇਰੇ ਸੁਪਨੇ ਪੂਰੇ ਕਰ ਦਿਉ, ਪਰ ਓ ਜਰੂਰ ਪੂਰੇ ਕਰ ਦਿਉ ਜੋ ਮੇਰੇ ਮਾਂ ਪਿਓ ਨੇ ਮੇਰੇ ਲਈ ਦੇਖੇ ਨੇ,
Answer» ONG>ANSWER: wow ! RIGHT , ta rabb tuhanu ਤਰੱਕੀ ਬਕਛੇ।

Discussion

19.	15m to 45cm find the ratio
Answer» ONG>Answer: 3:100 Step-by-step explanation: 45cm=45/100 m =0.45m Ratio=15:0.45 =15/0.45 =3/100 =3:100

19.

15m to 45cm find the ratio

Answer» ONG>Answer:

3:100

Step-by-step explanation:

45cm=45/100 m

=0.45m

Ratio=15:0.45

=15/0.45

=3/100

=3:100

Discussion

20.	Find the value of x and y for which x+y=17 and 4x+y= 6
Answer» ONG>Step-by-step EXPLANATION: x+y=17 x=17-y 4x+y=6 68-4y+y=6 -3y=-62 y=62/3 x=17-62/3 x=-11

20.

Find the value of x and y for which x+y=17 and 4x+y= 6

Answer» ONG>Step-by-step EXPLANATION:

x+y=17

x=17-y

4x+y=6

68-4y+y=6

-3y=-62

y=62/3

x=17-62/3

x=-11

Discussion

21.	79.85m to nearest m?
Answer» ONG>Answer: 80 m hope this will HELP you

21.

79.85m to nearest m?

Answer» ONG>Answer:

80 m

hope this will HELP you

Discussion

22.	If 8×8=64then √64 is
Answer» ONG>Answer: 8 Step-by-step EXPLANATION: HOPE it helped Thank you

22.

If 8×8=64then √64 is

Answer» ONG>Answer:

8

Step-by-step EXPLANATION:

HOPE it helped

Thank you

Discussion

23.	What is the answer of this ?
Answer» ong>Answer: 11/5 Step-by-step EXPLANATION: Pls MARK me as Brainliest

23.

What is the answer of this ?

Answer»

ong>Answer:

11/5

Step-by-step EXPLANATION:

Pls MARK me as Brainliest

Discussion

24.	Monday1951187376 (5-3)3]April1996
Answer» ong>ANSWER: YES say ur QUESTION porply

24.

Monday1951187376 (5-3)3]April1996

Answer»

ong>ANSWER:

YES say ur QUESTION porply

Discussion

25.	State whether it is a surd or not justify root 256
Answer» ONG>Answer: yaa Step-by-step explanation: 16x16=256 it's perfect CUBE ROOT

25.

State whether it is a surd or not justify root 256

Answer» ONG>Answer:

yaa

Step-by-step explanation:

16x16=256 it's perfect CUBE ROOT

Discussion

26.	The value of 10+√36 is.......
Answer» a MATE ♥️ see this ATTACHMENT HOPE it's HELP

26.

The value of 10+√36 is.......

Answer»

a MATE ♥️

see this ATTACHMENT

HOPE it's HELP

Discussion

27.	Solve for x: 3x²-9x-30=0
Answer» ONG>ANSWER: .the *answer* is 3 *only*....OKK

Discussion

28.	Which line is perpendicular to the line passing through the points (-4,2) and (4,-4) a. 3x+4y=16 b. 3x-4y=4 c. 4x+3y=15 d. 4x-3y=9 e. 3x+4y=-4
Answer» ind c, put the VALUES of x, y and m as 3, 4, -1.33. THUS 4 = -1.33*3 + c, or 4 = -4+c, or c = 8. Hence the equation of the LINE is 4x+3y=8 and that will be parallel to 4x+3y=12.

Discussion

29.	In Rohan's birthday party, 90% of his friends came and three friends did not come. Find the total number of friends Rohan has.
Answer» ONG>Answer: 15 friends ROHAN has PLZZ follow me

Discussion

30.	Find two numbers such that the mean propotion between them is 14 and third propotion is 112
Answer» ONG>Step-by-step explanation: PLEASE mark me as BRAINLIEST

Discussion

31.	Divide rs-240 in ratio(a) 1:2:3 (b) 2:3:5 (c) 1/2:1/3
Answer» ONG>ANSWER: answer is a 1=40,2=80,3=120 then 40+80+120=240. PLEASE FOLLOW me

Discussion

32.	(x^1/3-x^-1/3)(x^2/3+1+x^-2/3
Answer» ONG>ANSWER: (2x-1)/3-1=(x-2)/3 (2x-1)-3 =x-2 2x-4=x-2 2x-x=-2+4 x=2 Ans~ PLEASE, MARK ME AS BRAINLIEST!

32.

(x^1/3-x^-1/3)(x^2/3+1+x^-2/3

Answer» ONG>ANSWER:

(2x-1)/3-1=(x-2)/3

(2x-1)-3 =x-2

2x-4=x-2

2x-x=-2+4

x=2 Ans~

PLEASE, MARK ME AS BRAINLIEST!

Discussion

33.	(a+b+c)²=?plzz tell fast
Answer» ong>Answer: We KNOW the algebraic IDENTITY, ( x + y + z )² = x² + y² + z² + 2XY + 2yz + 2zx

33.

(a+b+c)²=?plzz tell fast

Answer»

ong>Answer:

We KNOW the algebraic IDENTITY,

( x + y + z )²

= x² + y² + z² + 2XY + 2yz + 2zx

Discussion

34.	Find the value of a when g(x) is a factor of p(x).(1) g(x)= x +1 ; p(x)= x² + ax + 2
Answer» ONG>ANSWER: $x + 1 = 0 \\ x = - 1 \\ {x}^{2} + ax + 2 = 0 \\ ( - 1) {}^{2} + a( - 1) + 2 = 0 \\$ $1 - a + 2 = 0 \\ - a = - 3 \\ a = 3$

34.

Find the value of a when g(x) is a factor of p(x).(1) g(x)= x +1 ; p(x)= x² + ax + 2

Answer» ONG>ANSWER:

$x + 1 = 0 \\ x = - 1 \\ {x}^{2} + ax + 2 = 0 \\ ( - 1) {}^{2} + a( - 1) + 2 = 0 \\$

$1 - a + 2 = 0 \\ - a = - 3 \\ a = 3$

Discussion

35.	Find the value if x if 23x=68x68-45x45
Answer» ong>Answer: Step-by-step EXPLANATION: In general, since we are comfortable DEALING with Decimal system, the best way to go about under the circumstances is to convert one Number into decimal Number and then with the base X, convert another Number into Decimal Number and equate them to find the value of x. So, (152)8 is 641+85+2, which is 106 in Decimal System. (211)x is 2x^2+ 1x+1 in Decimal System. Now, we solve 2x^2+x+1 = 106 i. e. 2x^2+x-105=0 Therefore 2x^2–14x+15x-105=0 Therefore 2x(x-7)+15(x-7)=0 Therefore (x-7)(2x+15)=0 Therefore either x = 7 or x = -15/2. Obviously x = -15/2 isnot the answer. So, x = 7 is the answer, which can be very easily verified. 27^2+1*7+1 = 106 which issame as (152)8. Thus the base for 211 is 7.

35.

Find the value if x if 23x=68x68-45x45

Answer»

ong>Answer:

Step-by-step EXPLANATION:

In general, since we are comfortable DEALING with Decimal system, the best way to go about under the circumstances is to convert one Number into decimal Number and then with the base X, convert another Number into Decimal Number and equate them to find the value of x.

So, (152)8 is 64*1+8*5+2, which is 106 in Decimal System.

(211)x is 2x^2+ 1*x+1 in Decimal System.

Now, we solve 2x^2+x+1 = 106

i. e. 2x^2+x-105=0

Therefore 2x^2–14x+15x-105=0

Therefore 2x(x-7)+15(x-7)=0

Therefore (x-7)(2x+15)=0

Therefore either x = 7 or x = -15/2.

Obviously x = -15/2 isnot the answer. So, x = 7 is the answer, which can be very easily verified. 2*7^2+1*7+1 = 106 which issame as (152)8.

Thus the base for 211 is 7.

Discussion

36.	In the following series a wrong number is given. Find out the number 4, 9, 15, 22, 30, 40a. 5b. 15c. 30
Answer» ong>ANSWER: 40 Step-by-step explanation: 4 + 5 = 9 9 + 6 = 15 15 + 7 = 22 22 + 8 = 30 30 + 9 = 39 hence there must be 39 in PLACE of 40

36.

In the following series a wrong number is given. Find out the number 4, 9, 15, 22, 30, 40a. 5b. 15c. 30

Answer»

ong>ANSWER: 40

Step-by-step explanation:

4 + 5 = 9

9 + 6 = 15

15 + 7 = 22

22 + 8 = 30

30 + 9 = 39

hence there must be 39 in PLACE of 40

Discussion

37.	5. Given n(A U B) = 48, n(A n B) = 10, and n(A - B) = n(B - A). Find n(A) and n(B).
Answer» ETS FORMULA U can FIND this

Discussion

38.	In the polygon ,BO =7x+4 and DO = 18. Find x.
Answer» O 7x+4=18 7x=18-4 7x=14 X=14÷7 x=2 therefore the VALUE of x =2 Hope this HELPS you..!!

38.

In the polygon ,BO =7x+4 and DO = 18. Find x.

Answer»

O

7x+4=18

7x=18-4

7x=14

X=14÷7

x=2

therefore the VALUE of x =2

Hope this HELPS you..!!

Discussion

39.	A rectangular room is 10 m long and 7.5 m wide . Find the cost of covering the floor with carpet 1.25 m wide at rupees 250 per m.
Answer» ER:₹18750 l=10m b=7.5m l×b 10×7.5=75sqm area of a rectangle=area of the floor mat 75sqm=l×1.25m 75÷1.25=l l=60m area of floor mat=60×1.25=75sqm cost of covering the floor with carpet=75×250=₹18750

39.

A rectangular room is 10 m long and 7.5 m wide . Find the cost of covering the floor with carpet 1.25 m wide at rupees 250 per m.

Answer» ER:₹18750

l=10m

b=7.5m

l×b

10×7.5=75sqm

area of a rectangle=area of the floor mat

75sqm=l×1.25m

75÷1.25=l

l=60m

area of floor mat=60×1.25=75sqm

cost of covering the floor with carpet=75×250=₹18750

Discussion

40.	The acceleration of the 10 kg block on the smooth inclined plane is
Answer» ong>Answer: the ACCELERATION of the 10 KG block on the SMOOTH inclined plane me

40.

The acceleration of the 10 kg block on the smooth inclined plane is

Answer»

ong>Answer:

the ACCELERATION of the 10 KG block on the SMOOTH inclined plane me

Discussion

41.	2+2 is what its not 4 not 22
Answer» ONG>ANSWER: SERIOUSLY ,I didn't UNDERSTAND the question.. Step-by-step explanation: 2+2=4

41.

2+2 is what its not 4 not 22

Answer» ONG>ANSWER:

SERIOUSLY ,I didn't UNDERSTAND the question..

Step-by-step explanation:

2+2=4

Discussion

42.	On comparing the ratios 9. and find a a, b,following pairs of linear equations intersectatap(1) 5x - 4y+8=07x + 6y - 9=0(ii) 67-3y + 10 = 02x - y+9=049findesandOn comparing the ratios
Answer» ONG>ANSWER: 690- is the answer and PLEASE FOLLOW me

Discussion

43.	in co Educational School 45% of the total student are girls if there are 440 boys in the school find the number of girls in the school
Answer» ong>Answer: 360 Step-by-step explanation: LET T represent the TOTAL Students 440 boys 45% Girls .45T +440 = T 440 = .55T 440/.55 = T = 800 Total Students 800-440 = 360 girls AND: .45(800) = 360

43.

in co Educational School 45% of the total student are girls if there are 440 boys in the school find the number of girls in the school

Answer»

ong>Answer:

360

Step-by-step explanation:

LET T represent the TOTAL Students

440 boys

45% Girls

.45T +440 = T

440 = .55T

440/.55 = T = 800 Total Students

800-440 = 360 girls

AND: .45(800) = 360

Discussion

44.	Calculate the amount and compound interest on (a) ₹ 10,800 for 3 years at 1212 % per annum compounded annually.(b) ₹ 18,000 for 212 years at 10% per annum compounded annually.(c) ₹ 62,500 for 112 years at 8% per annum compounded half yearly.(d) ₹ 8,000 for 1 year at 9% per annum compounded half yearly. (You could use the year by year calculation using SI formula to verify).(e) ₹ 10,000 for 1 year at 8% per annum compounded half yearly.REQUEST FOR UPLEASE WRITE THE ANSWER IN COPY AND CLICK PHOTO
Answer» ong>ANSWER: the answer is ₹9000 my DEAR do you LIKE to be my FRIEND and I am form SINGAPORE

44.

Calculate the amount and compound interest on (a) ₹ 10,800 for 3 years at 1212 % per annum compounded annually.(b) ₹ 18,000 for 212 years at 10% per annum compounded annually.(c) ₹ 62,500 for 112 years at 8% per annum compounded half yearly.(d) ₹ 8,000 for 1 year at 9% per annum compounded half yearly. (You could use the year by year calculation using SI formula to verify).(e) ₹ 10,000 for 1 year at 8% per annum compounded half yearly.REQUEST FOR UPLEASE WRITE THE ANSWER IN COPY AND CLICK PHOTO

Answer»

ong>ANSWER:

the answer is ₹9000 my DEAR do you LIKE to be my FRIEND and I am form SINGAPORE

Discussion

45.	What is the steps to -2x+3x-5=6-21
Answer» ONG>Step-by-step EXPLANATION: -2x+3x-5=6-21 x-5=-15 x=-10

45.

What is the steps to -2x+3x-5=6-21

Answer» ONG>Step-by-step EXPLANATION:

-2x+3x-5=6-21

x-5=-15

x=-10

Discussion

46.	Mr john deposit rs 5000 in the bank of 3 years if the rate of compound interest charged is 7% pa,8% pa and 10% pa respectively for the three years then find the amount and CI received by mr john at the end of 3 years ?
Answer» ong>Answer: i am not ABLE to under STAND the QUESTIONI am not able to under stand the questioni am not able to under stand the question Step-by-step explanation:

46.

Mr john deposit rs 5000 in the bank of 3 years if the rate of compound interest charged is 7% pa,8% pa and 10% pa respectively for the three years then find the amount and CI received by mr john at the end of 3 years ?

Answer»

ong>Answer:

i am not ABLE to under STAND the QUESTIONI am not able to under stand the questioni am not able to under stand the question

Step-by-step explanation:

Discussion

47.	फाइंड द वैल्यू ऑफ एक्स एंड वाय इज फॉर
Answer» ONG>Answer: i am not ABLE to under STAND the questioni am not able to under stand the questioni am not able to under stand the questioni am not able to under stand the questioni am not able to under stand the questioni am not able to under stand the questioni am not able to under stand the question Step-by-step EXPLANATION:

47.

फाइंड द वैल्यू ऑफ एक्स एंड वाय इज फॉर

Answer» ONG>Answer:

i am not ABLE to under STAND the questioni am not able to under stand the questioni am not able to under stand the questioni am not able to under stand the questioni am not able to under stand the questioni am not able to under stand the questioni am not able to under stand the question

Step-by-step EXPLANATION:

Discussion

48.	Add 2√2+5√3 and √2-3√3
Answer» ONG>ANSWER: This is your answer .......!!

48.

Add 2√2+5√3 and √2-3√3

Answer» ONG>ANSWER:

This is your answer .......!!

Discussion

49.	The present ages of the father and the sons are in the ratio 7:3 .Tens years ago,the father's age was four times of his son. Find their present ages. plz help me.
Answer» ong>ANSWER: The Father's age is 42 years and the Son's age is 18years Step-by-step explanation: Since the present ages are in ratio 7:3 Therefore, take father's age as 7x take Sons age as 3x ∴(x-10)=4(3x-10) [10 years ago] = 7x-10=12x-40 = 7x-12x= -40+10 = -5X= -30 = x=6 ∴ Fathers age = 76 = 42 years Sons age = 36 = 18 years VERIFICATION: 42/18=7/3 ⇒Hence Proved

49.

The present ages of the father and the sons are in the ratio 7:3 .Tens years ago,the father's age was four times of his son. Find their present ages. plz help me.

Answer»

ong>ANSWER:

The Father's age is 42 years and the Son's age is 18years

Step-by-step explanation:

Since the present ages are in ratio 7:3

Therefore,

take father's age as 7x

take Sons age as 3x

∴(x-10)=4(3x-10) [10 years ago]

= 7x-10=12x-40

= 7x-12x= -40+10

= -5X= -30

= x=6

∴ Fathers age = 7*6 = 42 years

Sons age = 3*6 = 18 years

VERIFICATION:

42/18=7/3

⇒Hence Proved

Discussion

50.	Multiplicative identity for integer is...........
Answer» ong>Answer: 1 Step-by-step explanation: Pls mark me as BRAINLIEST

50.

Multiplicative identity for integer is...........

Answer»

ong>Answer:

1

Step-by-step explanation:

Pls mark me as BRAINLIEST

Discussion

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