332354 + Interview Questions in Secondary School in Math

1.	The product of two rational numbers is 15/56 . If one of the numbers is -5/18, find the other.
Answer» ANSWER: this is your answer CHECK the ATTACHMENT

1.

The product of two rational numbers is 15/56 . If one of the numbers is -5/18, find the other.

Answer»

ANSWER:

this is your answer CHECK the ATTACHMENT

Discussion

2.	In a right angled triangle, the lengths of two sides other than the hypotenuse are 18cm and 24 cm. Find the length of the altitude to the hypotenuse.
Answer» Answer: let the triangle be abc... so by PYTHAGORAS' theorem we have.... (AC) ^2 = (AB) ^2+(BC) ^2... (AC) ^2= 324+576.. (AC)^2= 900... AC=√900... So AC = 30cm.

2.

In a right angled triangle, the lengths of two sides other than the hypotenuse are 18cm and 24 cm. Find the length of the altitude to the hypotenuse.

Answer»

Answer:

let the triangle be abc... so by PYTHAGORAS' theorem we have.... (AC) ^2 = (AB) ^2+(BC) ^2... (AC) ^2= 324+576.. (AC)^2= 900... AC=√900... So AC = 30cm.

Discussion

3.	Prove by vector method that sin(A+B)=sinAcosB+cosAsinB
Answer» ANSWER: lcytoitxtifoycofoyfyo Step-by-step explanation: +_:-)(:!;(#"7_97_07(07_&& :-)_8<\|:&:!69!96!06

3.

Prove by vector method that sin(A+B)=sinAcosB+cosAsinB

Answer»

ANSWER:

lcytoitxtifoycofoyfyo

Step-by-step explanation:

+_:-)(:!;(#"7_97_07(07_&& :-)_8<|:&:!69!96!06

Discussion

4.	If z = ax + by + c the p =
Answer» ANSWER: can't FINDABLE............

4.

If z = ax + by + c the p =

Answer»

ANSWER:

can't FINDABLE............

Discussion

5.	The area of an equilateral triangle of side'a! Hfeet is increasing at the rate of4 sq.ft./sec. The rate at which the perimeteris increasing is8v1)4)amoat and attains the speed318V32133)a2a
Answer» $area \: = \frac{ \sqrt{3} }{4} {a}^{2}$ $\frac{d(area)}{dt} = 2 \times \frac{ \sqrt{3} }{4} \times a \times \: \frac{da}{dt} = 4$ $\frac{da}{dt} = \frac{8}{ \sqrt{3} a}$ now, $perimeter(p) = 3a$ $\frac{dp}{dt} = 3 \times \frac{da}{dt} = 3 \times \frac{8}{ \sqrt{3} a} = \frac{8 \sqrt{3} }{a} ft \: per \: sec.$

5.

The area of an equilateral triangle of side'a! Hfeet is increasing at the rate of4 sq.ft./sec. The rate at which the perimeteris increasing is8v1)4)amoat and attains the speed318V32133)a2a

Answer»

$area \: = \frac{ \sqrt{3} }{4} {a}^{2}$

$\frac{d(area)}{dt} = 2 \times \frac{ \sqrt{3} }{4} \times a \times \: \frac{da}{dt} = 4$

$\frac{da}{dt} = \frac{8}{ \sqrt{3} a}$

now,

$perimeter(p) = 3a$

$\frac{dp}{dt} = 3 \times \frac{da}{dt} = 3 \times \frac{8}{ \sqrt{3} a} = \frac{8 \sqrt{3} }{a} ft \: per \: sec.$

Discussion

6.	If alpha and beta are the zeros of the polynomial 3x square - 4x - 7 . Then form a quadratic polynomial whose zeros are 1/alpha and 1/ beta
Answer» Step-by-step explanation: There YA go. ANS in PIC. HOPE it helps

6.

If alpha and beta are the zeros of the polynomial 3x square - 4x - 7 . Then form a quadratic polynomial whose zeros are 1/alpha and 1/ beta

Answer»

Step-by-step explanation:

There YA go. ANS in PIC. HOPE it helps

Discussion

7.	.1 Three numbers are in the ratio of 4 : 5: 6. If the sum of the largest and the smallest is equal to the twice of 55,find the numbers
Answer» ANSWER: LET the no. are 4x,5x and 6X A/q 4x+6x=5x+55 x=11 then 4x=4x11=44 5x=5x11=55 6x=6x11=66 Hence,the no. are 44,55, and 66

7.

.1 Three numbers are in the ratio of 4 : 5: 6. If the sum of the largest and the smallest is equal to the twice of 55,find the numbers

Answer»

ANSWER:

LET the no. are 4x,5x and 6X

A/q

4x+6x=5x+55

x=11

then

4x=4x11=44

5x=5x11=55

6x=6x11=66

Hence,the no. are 44,55, and 66

Discussion

8.	If x= -1 then find the value of 6x² -4x+11
Answer» Answer: 6×-1×-1 - 4-1+11 6×1 -5 +11 1+11=12 if U FIND it HELPFUL PLS MARK as brainliest

8.

If x= -1 then find the value of 6x² -4x+11

Answer»

Answer:

6×-1×-1 - 4-1+11

6×1 -5 +11

1+11=12

if U FIND it HELPFUL PLS MARK as brainliest

Discussion

9.	Find the multiplicative inverse of 5+3i/2-3i
Answer» PLEASE SEND the FULL PIC of QUESTION.

Discussion

10.	Iv) What should be subtracted from the sum of y' + 2y +1 and y + 6y-2 to get 1
Answer» Answer: YT yt I will be in HELL O you feeling today so I'm GOING to how you feeling today so I'm have sex GAMES ending in

10.

Iv) What should be subtracted from the sum of y' + 2y +1 and y + 6y-2 to get 1

Answer»

Answer:

YT yt I will be in HELL O you feeling today so I'm GOING to how you feeling today so I'm have sex GAMES ending in

Discussion

11.	In an A.P. if 7th term is 91 and the sum of first four terms is 40. find the sum of first ten terms
Answer» Step-by-step explanation: $\bf{\underline{\underline\red{Given:-}}}$ The 7th term of an AP is 91. The SUM of first four terms is 40. $\bf{\underline{\underline\blue{To\:Find:-}}}$ The sum of first ten terms. $\bf{\underline{\underline\green{Solution:-}}}$ As we know that:- The nth term of an AP is given by the formula:- $\boxed{ \rm \leadsto a_{n} = a + (n - 1)d }$ Here:- • $\rm a_{n}$ = nth term • a = first term • n = number of terms • d = common difference The 7th term = 91 ${ \rm \implies a_{7} = a + (7 - 1)d }$ ${ \rm \implies a + 6d }= 91 .......(i)$ As we know that:- Sum of n terms is given by the formula:- $\boxed{ \rm \leadsto S_{n} = \frac{n}{2} \bigg \{ 2a + (n - 1)d \bigg \} }$ Here:- • $\rm S_{n}$ = sum of n terms Sum of four terms = 40 ${ \rm \implies S_{4} = \dfrac{4}{2} \bigg \{ 2a + (4 - 1)d \bigg \} }$ ${ \rm \implies 40 = 2( 2a + 3d) }$ ${ \rm \implies \dfrac{40}{2} = ( 2a + 3d) }$ $\rm \implies 20 = 2a + 3d .....(ii)$ Multiplying EQUATION (ii) with 2 → 2(2a + 3d = 20) → 4a + 6d = 40......(iii) SUBTRACTING equation (i) from (iii) → 4a + 6d - ( a + 6d ) = 40 - 91 → 4a + 6d - a - 6d = -51 → 3a = -51 → a = $\dfrac{ - 51}{3}$ → a = -17 Substituting a = -17 in equation (i) → a + 6d = 91 → -17 + 6d = 91 → 6d = 91 + 17 → 6d = 108 → d = 18 We have a = -17 and d = 18 The sum of first 10 terms $\rm= \dfrac{n}{2} \bigg \{2a + (n - 1)d \bigg \}$ $\rm= \dfrac{10}{2} \bigg \{2 \times - 17+ (10 - 1)18\bigg \}$ $\rm= 5 \bigg \{(2 \times - 17)+ (9 \times 18)\bigg \}$ $\rm= 5 \bigg \{ - 34+ 162\bigg \}$ = 5 × 128 = 640 Therefore; The sum of first 10 terms is 640

11.

In an A.P. if 7th term is 91 and the sum of first four terms is 40. find the sum of first ten terms

Answer»

Step-by-step explanation:

$\bf{\underline{\underline\red{Given:-}}}$

The 7th term of an AP is 91.

The SUM of first four terms is 40.

$\bf{\underline{\underline\blue{To\:Find:-}}}$

The sum of first ten terms.

$\bf{\underline{\underline\green{Solution:-}}}$

As we know that:-

The nth term of an AP is given by the formula:-

$\boxed{ \rm \leadsto a_{n} = a + (n - 1)d }$

Here:-

• $\rm a_{n}$ = nth term

• a = first term

• n = number of terms

• d = common difference

The 7th term = 91

${ \rm \implies a_{7} = a + (7 - 1)d }$

${ \rm \implies a + 6d }= 91 .......(i)$

As we know that:-

Sum of n terms is given by the formula:-

$\boxed{ \rm \leadsto S_{n} = \frac{n}{2} \bigg \{ 2a + (n - 1)d \bigg \} }$

Here:-

• $\rm S_{n}$ = sum of n terms

Sum of four terms = 40

${ \rm \implies S_{4} = \dfrac{4}{2} \bigg \{ 2a + (4 - 1)d \bigg \} }$

${ \rm \implies 40 = 2( 2a + 3d) }$

${ \rm \implies \dfrac{40}{2} = ( 2a + 3d) }$

$\rm \implies 20 = 2a + 3d .....(ii)$

Multiplying EQUATION (ii) with 2

→ 2(2a + 3d = 20)

→ 4a + 6d = 40......(iii)

SUBTRACTING equation (i) from (iii)

→ 4a + 6d - ( a + 6d ) = 40 - 91

→ 4a + 6d - a - 6d = -51

→ 3a = -51

→ a = $\dfrac{ - 51}{3}$

→ a = -17

Substituting a = -17 in equation (i)

→ a + 6d = 91

→ -17 + 6d = 91

→ 6d = 91 + 17

→ 6d = 108

→ d = 18

We have a = -17 and d = 18

The sum of first 10 terms

$\rm= \dfrac{n}{2} \bigg \{2a + (n - 1)d \bigg \}$

$\rm= \dfrac{10}{2} \bigg \{2 \times - 17+ (10 - 1)18\bigg \}$

$\rm= 5 \bigg \{(2 \times - 17)+ (9 \times 18)\bigg \}$

$\rm= 5 \bigg \{ - 34+ 162\bigg \}$

= 5 × 128

= 640

Therefore; The sum of first 10 terms is 640

Discussion

12.	The smallest natural number by which 243 must be multiplied to make the product a perfect cube is
Answer» Answer: 3 Step-by-step explanation: Hence, the smallest natural number by which 243 should be MULTIPLIED to MAKE a perfect cube is 3 ..That is 729. PLEASE mark me as the BRAINLIEST!! Also: Follow me Rate me Thank me Please Dear Be my FRIEND too

12.

The smallest natural number by which 243 must be multiplied to make the product a perfect cube is

Answer»

Answer:

3

Step-by-step explanation:

Hence, the smallest natural number by which 243 should be MULTIPLIED to MAKE a perfect cube is 3 ..That is 729.

PLEASE mark me as the BRAINLIEST!!

Also:

Follow me

Rate me

Thank me Please Dear

Be my FRIEND too

Discussion

13.	please send the answer don't you my point OK will help me soti please please please please please help me
Answer» ANSWER: answer is GIVEN in PICTURE

13.

please send the answer don't you my point OK will help me soti please please please please please help me

Answer»

ANSWER:

answer is GIVEN in PICTURE

Discussion

14.	If sin theta = 1 finfd the value of theta
Answer» ANSWER: 90° is the CORRECT answer.

14.

If sin theta = 1 finfd the value of theta

Answer»

ANSWER:

90° is the CORRECT answer.

Discussion

15.	Plssss help urgent!!!
Answer» ANSWER: GREATER than 90 DEGREE is the CORRECT answer

15.

Plssss help urgent!!!

Answer»

ANSWER:

GREATER than 90 DEGREE is the CORRECT answer

Discussion

16.	Represent 1+ROOT3 on number line
Answer» Once again we have a RIGHT angled triangle and we can say that the hypotenuse will be √3 in MEASURE. We draw a curve with point #1 as center and √3 as radius. The point where this curve and X axis MEET will be 1 + √3. This is how we show 1 + √3 on the number line.!

Discussion

17.	ङ) चित्र में, AABC के आधार BC के समान्तररेखाखण्डPQ: EC =1:3, तो AP और B काPQ खींचाहै।अनुपात होगाP PBi) 1:4iiil/1:2Cii) 1:3iv) 2:3.
Answer» ANSWER: PLEASE WRITE it in ENGLISH

17.

ङ) चित्र में, AABC के आधार BC के समान्तररेखाखण्डPQ: EC =1:3, तो AP और B काPQ खींचाहै।अनुपात होगाP PBi) 1:4iiil/1:2Cii) 1:3iv) 2:3.

Answer»

ANSWER:

PLEASE WRITE it in ENGLISH

Discussion

18.	What is cardinal tell me
Answer» CARDINALS, in the family Cardinalidae, are PASSERINE birds found in North and South America. They are also known as cardinal-grosbeaks and cardinal-buntings. HISTORICALLY, the South American cardinals in the genus Paroaria have been PLACED in the tanager family Thraupidae.

Discussion

19.	If 3 is a root of 2x^2+Kx+4=0 then k =?
Answer» ANSWER: GIVEN ONE ROOT is 3 let other root be'a' sum of roots=3+a=-k /2 product of roots=3a=4/2=2 a=2/3 sum=3+2/3=11/3 11/3=-K/2 K=-22/3

19.

If 3 is a root of 2x^2+Kx+4=0 then k =?

Answer»

ANSWER:

GIVEN ONE ROOT is 3

let other root be'a'

sum of roots=3+a=-k /2

product of roots=3a=4/2=2

a=2/3

sum=3+2/3=11/3

11/3=-K/2

K=-22/3

Discussion

20.	द प्रोडक्ट ऑफ टू नंबर इज 2420 एंड द एलसीएम s110 फाइंड द एचसीएफ ऑफ द गिवन नंबर्स
Answer» Answer: product of two numbers = lcm x HCF in this case lcm = 110 product of two numbers is = 2420 hence hcf = 2420 / 110 = 22 HOPE this HELPS

20.

द प्रोडक्ट ऑफ टू नंबर इज 2420 एंड द एलसीएम s110 फाइंड द एचसीएफ ऑफ द गिवन नंबर्स

Answer»

Answer:

product of two numbers = lcm x HCF

in this case

lcm = 110

product of two numbers is = 2420

hence hcf = 2420 / 110 = 22

HOPE this HELPS

Discussion

21.	The roots of x=1/x are
Answer» Step-by-step explanation: x=1/x x^2=1 x=√1 x=+-1 So, x can take values 1 or -1 . Hope u LIKED the ANSWER. MARK as the BRAINLIEST please . Be Brainly

21.

The roots of x=1/x are

Answer»

Step-by-step explanation:

x=1/x

x^2=1

x=√1

x=+-1

So, x can take values 1 or -1 .

Hope u LIKED the ANSWER.

MARK as the BRAINLIEST please .

Be Brainly

Discussion

22.	3x/4-2y/3=5,2x/5+3y/5=17ܕܐ
Answer» Answer: 2x3+3y5−17=03x4+2y3−19=0By cross−multiplication, we getx[35×(−19)]−[23×(−17)]=−y[23×(−19)]−[34×(−17)]=1[(23×23)−(34×35)]x−575+343=−y−383+514=149−920x−115=−y112=1−1180⇒x−115=1−1180⇒ 2x/3 + 3y/5 = 17 (10x+9y=255)/15 Hence, 10x+9y=255 Let x be 2 10*2 +9y=255 20+9y=255 9y=255-20 9y=235 y=235/9 So, x=2, y=26.11.... 3x/4+2y/3=19 (9x+8y=288)/12 9x+8y=288 Let x be 3 hence, 27+8y=288 8y=288-27 8y=261 y=261/8 So, x=3 and y=32.625

22.

3x/4-2y/3=5,2x/5+3y/5=17ܕܐ

Answer»

Answer:

2x3+3y5−17=03x4+2y3−19=0By cross−multiplication, we getx[35×(−19)]−[23×(−17)]=−y[23×(−19)]−[34×(−17)]=1[(23×23)−(34×35)]x−575+343=−y−383+514=149−920x−115=−y112=1−1180⇒x−115=1−1180⇒

2x/3 + 3y/5 = 17

(10x+9y=255)/15

Hence, 10x+9y=255

Let x be 2

10*2 +9y=255

20+9y=255

9y=255-20

9y=235

y=235/9

So, x=2, y=26.11....

3x/4+2y/3=19

(9x+8y=288)/12

9x+8y=288

Let x be 3

hence, 27+8y=288

8y=288-27

8y=261

y=261/8

So, x=3 and y=32.625

Discussion

23.	if there are (2n+1) terms in an AP,then prove that the ratio of the sum of odd terms and the sum of even terms is (n+1):n
Answer» ANSWER: don't KNOW Step-by-step EXPLANATION: both are WRONG EQUATION

23.

if there are (2n+1) terms in an AP,then prove that the ratio of the sum of odd terms and the sum of even terms is (n+1):n

Answer»

ANSWER:

don't KNOW

Step-by-step EXPLANATION:

both are WRONG EQUATION

Discussion

24.	Conjugates of Omega is?a. -omegab. -omega²c. omega²d. 1
Answer» OPTION C PLEASE MARK as BRAINLIESTS.

Discussion

25.	The sum of three numbers in ap 30 and the ratio the first number to third numbers 3:7find the numbers
Answer» Step-by-step EXPLANATION: SQQ CNN djdbfncbcjfkeodvvddvbdsjei CDS BRIDE djdidhhehejejeihekeodjfbbdvfejiedbdbbdhdhd ndnsjowdnj

25.

The sum of three numbers in ap 30 and the ratio the first number to third numbers 3:7find the numbers

Answer»

Step-by-step EXPLANATION:

SQQ CNN djdbfncbcjfkeodvvddvbdsjei CDS BRIDE djdidhhehejejeihekeodjfbbdvfejiedbdbbdhdhd
ndnsjowdnj

Discussion

26.	The points (-5, 12), (-2, -3), (9, -10), (6, +5) taken in order form
Answer» ANSWER: in COORDINATE GEOMETRY

26.

The points (-5, 12), (-2, -3), (9, -10), (6, +5) taken in order form

Answer»

ANSWER:

in COORDINATE

GEOMETRY

Discussion

27.	60km/h-¹ into m/s-¹
Answer» 60×5/18 = 300/18 = 150/9 = 50/3 m/s mark me BRAINLIEST

27.

60km/h-¹ into m/s-¹

Answer»

60×5/18

= 300/18

= 150/9

= 50/3 m/s

mark me BRAINLIEST

Discussion

28.	If log a+log b=log(a^2+b^2) then proved that (a+b) ^2=3ab
Answer» HEY Buddy Here's The ANSWER --------------------------------------------- Given : LOG a + log B = log ( a² + b² ) To prove : ( a + b )² = 3ab Solution :We know, log x + log y = log ( xy ) => log a + log b = log ( a² + b² ) By using above logarithm property => log ( ab ) = log ( a² + b² ) Cancelling log both sides. ab = a² + b² adding 2ab on both sides ab + 2ab = a² + b² + 2ab on R.H.S, ( a² + b² + 2ab ) can be written as ( a + b )² ab + 2ab = ( a + b )² 3ab = ( a + b )² Hence Proved. Hope It Helps.

28.

If log a+log b=log(a^2+b^2) then proved that (a+b) ^2=3ab

Answer»

HEY Buddy

Here's The ANSWER

---------------------------------------------

Given :

LOG a + log B = log ( a² + b² )

To prove : ( a + b )² = 3ab

Solution :We know, log x + log y = log ( xy )

=> log a + log b = log ( a² + b² )

By using above logarithm property

=> log ( ab ) = log ( a² + b² )

Cancelling log both sides.

ab = a² + b²

adding 2ab on both sides

ab + 2ab = a² + b² + 2ab

on R.H.S, ( a² + b² + 2ab ) can be written as ( a + b )²

ab + 2ab = ( a + b )² 3ab = ( a + b )²

Hence Proved.

Hope It Helps.

Discussion

29.	2530 distributed between ram and Hari such that ram gets 11/12 part that hair gets then hair gets
Answer» Answer: good MORNING Step-by-step EXPLANATION: have a GREAT DAY

29.

2530 distributed between ram and Hari such that ram gets 11/12 part that hair gets then hair gets

Answer»

Answer:

good MORNING

Step-by-step EXPLANATION:

have a GREAT DAY

Discussion

30.	There are five elements or parts of a triangle . how
Answer» ANSWER: it is FALSE. There are 6 ELEMENTS

30.

There are five elements or parts of a triangle . how

Answer»

ANSWER:

it is FALSE. There are 6 ELEMENTS

Discussion

31.	There is only one proper subset of
Answer» Answer: A proper subset of a set A is a subset of A that is not EQUAL to A. In other words, if B is a proper subset of A, then all ELEMENTS of B are in A but A contains at LEAST one element that is not in B. For EXAMPLE, if A={1,3,5} then B={1,5} is a proper subset of A. The set C={1,3,5} is a subset of A, but it is not a proper subset of A since C=A. The set D={1,4} is not even a subset of A, since 4 is not an element of A.

31.

There is only one proper subset of

Answer»

Answer:

A proper subset of a set A is a subset of A that is not EQUAL to A. In other words, if B is a proper subset of A, then all ELEMENTS of B are in A but A contains at LEAST one element that is not in B.

For EXAMPLE, if A={1,3,5} then B={1,5} is a proper subset of A. The set C={1,3,5} is a subset of A, but it is not a proper subset of A since C=A. The set D={1,4} is not even a subset of A, since 4 is not an element of A.

Discussion

32.	If x=loga(bc),y = logb (ca),z = logc (ab), then which of the following is equal to 1
Answer» Answer: Search for a topic General Awareness > Awards & Honours > International Awards Awards & Honours International Awards International Awards are the honors or recognition of an individual or a community. Usually, these RECOGNITIONS are in the fields of Science, Mathematics, Literature, Technology, Community Services, Environmental Services, Architecture, Bravery, Philanthropy, Arts, Sports, Movies, Theatre and other fields. In the FOLLOWING section, we will learn about many such awards and also SEE some lists of individuals and awards of the RECENT times. LET us see! Suggested Videos ArrowArrow ArrowArrow Introduction to culture and civilisation Cities and Challenge of Environment Social Changes in Cities During Industrialisation Solve Questions List of Some Important International Awards In the following space below we will introduce a listing of some of the most popular awards and honors bestowed by the International community. Let us list some of the most famous awards in the world below: Nobel Prize Booker Prize Academy Awards BAFTA Awards The Palme d’Or Pulitzer Prize The Golden Globes BRIT Awards The Grammys MTV Video Music Awards

32.

If x=loga(bc),y = logb (ca),z = logc (ab), then which of the following is equal to 1

Answer»

Answer:

Search for a topic

General Awareness > Awards & Honours > International Awards

Awards & Honours

International Awards

International Awards are the honors or recognition of an individual or a community. Usually, these RECOGNITIONS are in the fields of Science, Mathematics, Literature, Technology, Community Services, Environmental Services, Architecture, Bravery, Philanthropy, Arts, Sports, Movies, Theatre and other fields. In the FOLLOWING section, we will learn about many such awards and also SEE some lists of individuals and awards of the RECENT times. LET us see!

33.	Obtain all the zeroes of the polynomialf(x) = 2x⁴ + x³ – 14x²– 192, if two of its zeroes are -2 and -1can anyone hlp wid dis↑?
Answer» ANSWER: F(-2) = 224 f(-1) = 205 Step-by-step EXPLANATION:

Obtain all the zeroes of the polynomialf(x) = 2x⁴ + x³ – 14x²– 192, if two of its zeroes are -2 and -1can anyone hlp wid dis↑?

Answer»

ANSWER:

F(-2) = 224

f(-1) = 205

Step-by-step EXPLANATION:

Discussion

34.	A sum of Rs 1764 was given on compound interest it become Rs 1600after 2year what was the rate of interest
Answer» ANSWER: 2000 Step-by-step EXPLANATION: the answer of this QUESTION is 2000

34.

A sum of Rs 1764 was given on compound interest it become Rs 1600after 2year what was the rate of interest

Answer»

ANSWER:

2000

Step-by-step EXPLANATION:

the answer of this QUESTION is 2000

Discussion

35.	Mia in a train notice that she can count 41 telephone post in one minute .If they are known to be 50 metres apart,then at what speed is the train travelling?
Answer» Answer: 120 km/HOUR Ans. Step-by-step explanation: NUMBER of gaps between 41 poles = 40 So total distance between 41 poles = 4050 = 2000 meter = 2 km In 1 minute TRAIN is moving 2 km/minute. Speed in hour = 260 = 120 km/hour Hope it helps you with a smile on your face!! PLS mark brainlist and follow me pls plsss

35.

Mia in a train notice that she can count 41 telephone post in one minute .If they are known to be 50 metres apart,then at what speed is the train travelling?

Answer»

Answer:

120 km/HOUR Ans.

Step-by-step explanation:

NUMBER of gaps between 41 poles = 40

So total distance between 41 poles = 40*50

= 2000 meter = 2 km

In 1 minute TRAIN is moving 2 km/minute.

Speed in hour = 2*60 = 120 km/hour

Hope it helps you with a smile on your face!!

PLS mark brainlist and follow me pls plsss

Discussion

36.	Find hcf by division method of 144,180,192
Answer» Answer: please mark me as brainlist Step-by-step explanation: Using the factor TREE for the prime factorization of 144,180 and 192, we have 144=2 4 ×3 2 ,180=2 2 ×3 2 ×5 and 192=2 6 ×3 To find the HCF, we list the common prime factor and their smallest exponents in 144,180 and 192 as follows: Common prime factor LEAST exponents 2 2 3 1 ∴ HCF=2 2 ×3 1 =12 To find the LCM, we list all prime factors of 144,180,192 and their greatest exponents as follows: Prime factors of 144,180 and 192 Greatest exponents 2 6 3 2 5 1 ∴ LCM=2 6 ×3 2 ×5 1 =64×9×5=2880

36.

Find hcf by division method of 144,180,192

Answer»

Answer:

please mark me as brainlist

Step-by-step explanation:

Using the factor TREE for the prime factorization of 144,180 and 192, we have

144=2

4

×3

2

,180=2

2

×3

2

×5 and 192=2

6

×3

To find the HCF, we list the common prime factor and their smallest exponents in 144,180 and 192 as follows:

Common prime factor LEAST exponents

2 2

3 1

∴ HCF=2

2

×3

1

=12

To find the LCM, we list all prime factors of 144,180,192 and their greatest exponents as follows:

Prime factors of 144,180 and 192 Greatest exponents

2 6

3 2

5 1

∴ LCM=2

6

×3

2

×5

1

=64×9×5=2880

Discussion

37.	The pairs of equations x+2y-5 = 0 and -4x-8y+20=0 have
Answer» INFINITELY MANY SOLUTIONS

37.

The pairs of equations x+2y-5 = 0 and -4x-8y+20=0 have

Answer»

INFINITELY MANY SOLUTIONS

Discussion

38.	If (a-2b-3c+4d)(a+2b+3c+4d)=(a+2b-3c-4d)(a-2b+3c-4d) find relation connecting a,b,c,d
Answer» Answer: The relation B/w a,b,c,d is 2ad=3bc.Hope this answer HELPS you. Step-by-step explanation: Two formulas are REQUIRED to solve this problem (x+y)(x-y)=x^2-y^2 (x+y)^2-(x-y)^2=4xy

38.

If (a-2b-3c+4d)(a+2b+3c+4d)=(a+2b-3c-4d)(a-2b+3c-4d) find relation connecting a,b,c,d

Answer»

Answer:

The relation B/w a,b,c,d is 2ad=3bc.Hope this answer HELPS you.

Step-by-step explanation:

Two formulas are REQUIRED to solve this problem

(x+y)(x-y)=x^2-y^2
(x+y)^2-(x-y)^2=4xy

Discussion

39.	The sum of all the natural numbers between 100 and 1000, which are multiples of 5, is:
Answer» ANSWER: This sequence FORMS an A.P. Thus, the sum of all natural NUMBERS lying between 100 and 1000, which are multiples of 5, is 98450.

39.

The sum of all the natural numbers between 100 and 1000, which are multiples of 5, is:

Answer»

ANSWER:

This sequence FORMS an A.P. Thus, the sum of all natural NUMBERS lying between 100 and 1000, which are multiples of 5, is 98450.

Discussion

40.	Find the cube of 3 whole 1 by 4
Answer» ANSWER: EASY easy very easy TRY

40.

Find the cube of 3 whole 1 by 4

Answer»

ANSWER:

EASY easy very easy

TRY

Discussion

41.	The distance between two parallel tangents of a circle of radius 3 cm is
Answer» Answer: if the tangents have to be PARALLEL then the tangents have to be DRAWN on the either side of the diameter given that radius is 3CM then diameter will be 6cm so ur answer is 6cm mark me as the BRAINLIEST PL pl

41.

The distance between two parallel tangents of a circle of radius 3 cm is

Answer»

Answer:

if the tangents have to be PARALLEL then the tangents have to be DRAWN on the either side of the diameter

given that radius is 3CM then diameter will be 6cm

so ur answer is 6cm

mark me as the BRAINLIEST PL pl

Discussion

42.	Sوb.А Ad AWorksheetste 5Mpter 2 2PrimonySchoolShapes and Angles,öl. Filldin the blanks :-right angle measuresangle isless than 90°А Aright angles.angle measures equal to twostraight angle always measurese. When I stretch all the five fingers of myhand to fall, my fingers make fourangles.f. If I stand erect barefoot my foot makesangle with my leg.g. Two rays with a common and point formth. The common end point is called thei Measure of a straight angle is\| There are 300 in a right angle.a
Answer» ANSWER: YAH! I don't KNOW what you are QUESTIONING?

42.

Sوb.А Ad AWorksheetste 5Mpter 2 2PrimonySchoolShapes and Angles,öl. Filldin the blanks :-right angle measuresangle isless than 90°А Aright angles.angle measures equal to twostraight angle always measurese. When I stretch all the five fingers of myhand to fall, my fingers make fourangles.f. If I stand erect barefoot my foot makesangle with my leg.g. Two rays with a common and point formth. The common end point is called thei Measure of a straight angle is| There are 300 in a right angle.a

Answer»

ANSWER:

YAH! I don't KNOW what you are QUESTIONING?

Discussion

43.	इटवा सैटरडे ऑन 17 दिसंबर 2009 व्हाट विल बी द डे ऑन 27 दिसंबर 2012
Answer» ANSWER: A.P KE patham 4 paad likho jesme a= 3 b = -2

43.

इटवा सैटरडे ऑन 17 दिसंबर 2009 व्हाट विल बी द डे ऑन 27 दिसंबर 2012

Answer»

ANSWER:

A.P KE patham 4 paad likho jesme a= 3 b = -2

Discussion

44.	বাম পুটি বাহু দেঘ্যে সমান।1টি বর্গাকার তৈরির জন্য 4টি দেশলাই-এর কাঠি, 2টি বর্গাকার তৈরির জন্য2x4টি দেশলাই-এর কাঠিরপ্রয়োজন।এইভাবে এটি বর্গাকার তৈরির জন্য মােট কাঠির সংখ্যা কত হবে? এই সংখ্যাটির ধ্রুবক এবং চল লেখাে।০কন=২2
Answer» Step-by-step EXPLANATION: ए बी सी डी ई एफ जी एच आई जे के एल एम एन ओ पी क्यू आर एस टी यू वी डब्ल्यू एक्स वाई जेड आई ई उ ऊ ए ऐ ओ औ

44.

বাম পুটি বাহু দেঘ্যে সমান।1টি বর্গাকার তৈরির জন্য 4টি দেশলাই-এর কাঠি, 2টি বর্গাকার তৈরির জন্য2x4টি দেশলাই-এর কাঠিরপ্রয়োজন।এইভাবে এটি বর্গাকার তৈরির জন্য মােট কাঠির সংখ্যা কত হবে? এই সংখ্যাটির ধ্রুবক এবং চল লেখাে।০কন=২2

Answer»

Step-by-step EXPLANATION:

ए बी सी डी ई एफ जी एच आई जे के एल एम एन ओ पी क्यू आर एस टी यू वी डब्ल्यू एक्स वाई जेड आई ई उ ऊ ए ऐ ओ औ

Discussion

45.	the product of the hcf and the lcm of the smallest prime number and the smallest composite number is
Answer» Answer: 8 Step-by-step explanation: SMALLEST PRIME number = 2 smallest composite number = 4 2= 2 4=2×2 H.C.F of 2 and 4 is 2 L.c.m of 2 and 4 is : 4 So, product of h.c.f and l.c.m is : 2×4 = 8

45.

the product of the hcf and the lcm of the smallest prime number and the smallest composite number is

Answer»

Answer:

8

Step-by-step explanation:

SMALLEST PRIME number = 2

smallest composite number = 4

2= 2

4=2×2

H.C.F of 2 and 4 is 2

L.c.m of 2 and 4 is : 4

So, product of h.c.f and l.c.m is : 2×4

= 8

Discussion

46.	Pls help me for all this questions pls ( any genius here
Answer» ANSWER: BIT 1. Step-by-step EXPLANATION: (I)3/5=1.7 HOPE this helps u

46.

Pls help me for all this questions pls ( any genius here

Answer»

ANSWER:

BIT 1.

Step-by-step EXPLANATION:

(I)3/5=1.7 HOPE this helps u

Discussion

47.	3eoXERT7X < x2-513(E-E-2
Answer» ANSWER: gxbbx znzbbznznnxnx ZNZ ,nbxnxnzbzmxnbzbxjxjxnbxjxjjxid

47.

3eoXERT7X < x2-513(E-E-2

Answer»

ANSWER:

gxbbx znzbbznznnxnx ZNZ ,nbxnxnzbzmxnbzbxjxjxnbxjxjjxid

Discussion

48.	Write the common factor of the following i)15,40
Answer» Answer: 5 See the ATTACHMENT below my FRIEND:-

48.

Write the common factor of the following i)15,40

Answer»

Answer:

5

See the ATTACHMENT below my FRIEND:-

Discussion

49.	If gun is written as 309 dear is wirtten as 1478 then under is written as?
Answer» Answer: 09148 hope it HELPS you

49.

If gun is written as 309 dear is wirtten as 1478 then under is written as?

Answer»

Answer:

09148

hope it HELPS you

Discussion

50.	Are 20:30 and 24:36 equivalent rations?Mr. Shakir earns Rs 25,000 in a month,the of his income to his expenditure.An alloy contains 8g of zinc and 4g ofmetals in the alloy.
Answer» Step-by-step explanation: Are 20:30 and 24:36 equivalent rations? MR. Shakir earns RS 25,000 in a month, the of his INCOME to his expenditure. An ALLOY contains 8g of zinc and 4g of metals in the alloy.

50.

Are 20:30 and 24:36 equivalent rations?Mr. Shakir earns Rs 25,000 in a month,the of his income to his expenditure.An alloy contains 8g of zinc and 4g ofmetals in the alloy.

Answer»

Step-by-step explanation:

Are 20:30 and 24:36 equivalent rations?

MR. Shakir earns RS 25,000 in a month,

the of his INCOME to his expenditure.

An ALLOY contains 8g of zinc and 4g of

metals in the alloy.

Discussion

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Write the common factor of the following i)15,40

If gun is written as 309 dear is wirtten as 1478 then under is written as?

Are 20:30 and 24:36 equivalent rations?Mr. Shakir earns Rs 25,000 in a month,the of his income to his expenditure.An alloy contains 8g of zinc and 4g ofmetals in the alloy.