332354 + Interview Questions in Secondary School in Math

1.	If x=√2+1/√2-1 and y=√2-1/√2+1 find the value of x^2+y^2-xy Provide complete answers please
Answer» Your ANSWER will be 33 by RATIONALIZING

Discussion

2.	Ratio of two number is 3:8 and the sum of square is 292.find the sum of number
Answer» No. = 3x , 8X (3x)^2 + (8x)^2 = 292 9x^2 + 64x^2 = 292 73x^2 = 292 x^2 = 292/73 = 4 x = 2 no. = 3x = 3 x 2 = 6 8x = 8 x 2 = 16 sum of no. = 6 + 16 = 22 hope it HELP u plz mark as a brainliest & FOLLOW me

2.

Ratio of two number is 3:8 and the sum of square is 292.find the sum of number

Answer»

No. = 3x , 8X

(3x)^2 + (8x)^2 = 292

9x^2 + 64x^2 = 292

73x^2 = 292

x^2 = 292/73 = 4

x = 2

no. = 3x = 3 x 2 = 6

8x = 8 x 2 = 16

sum of no. = 6 + 16 = 22

hope it HELP u

plz mark as a brainliest & FOLLOW me

Discussion

3.	The areas of two similar triangles are 12cm sq and 48 cm sq . if the height of the similar one is 2.1 cm , then the corresponding height of the bigger one is
Answer» Hey there! Given, Area of two similar triangles = 12 cm² , 48 cm² . Area of BIGGER triangle = 48 cm² Area of smaller triangle = 12 cm² We KNOW that, *Ratio of the areas of two similar is equal to square of the ratio of corresponding heights or altitudes.* Given, HEIGHT of smaller triangle =2.1 cm. $\boxed{\frac{ Ar(Bigger \: triangle)}{Ar(Smaller \: triangle)} = ( \frac{ Height \: of \: bigger \: triangle } {Height \: of \: smaller \: triangle } )^2}$ $\implies \frac{ 48}{12} = \frac{(Height \: of \: bigger \: triangle)^2 } { 2.1^{2}}$ 4 = (Height of the triangle)² / 4.41 *√(4 4.41) = Height of the bigger triangle Height of the bigger triangle = 2 * 2.1 = 4.2 cm.** Hope helped!

3.

The areas of two similar triangles are 12cm sq and 48 cm sq . if the height of the similar one is 2.1 cm , then the corresponding height of the bigger one is

Answer»

Hey there!

Given,

Area of two similar triangles = 12 cm² , 48 cm² .

Area of BIGGER triangle = 48 cm²

Area of smaller triangle = 12 cm²

We KNOW that, Ratio of the areas of two similar is equal to square of the ratio of corresponding heights or altitudes.

Given, HEIGHT of smaller triangle =2.1 cm.

$\boxed{\frac{ Ar(Bigger \: triangle)}{Ar(Smaller \: triangle)} = ( \frac{ Height \: of \: bigger \: triangle } {Height \: of \: smaller \: triangle } )^2}$

$\implies \frac{ 48}{12} = \frac{(Height \: of \: bigger \: triangle)^2 } { 2.1^{2}}$

4 = (Height of the triangle)² / 4.41

√(4 * 4.41) = Height of the bigger triangle

Height of the bigger triangle = 2 * 2.1 = 4.2 cm.

Hope helped!

Discussion

4.	Please answer the question given in the above image.
Answer» D) will be the ANSWER

Discussion

5.	An angle is 14° more than its complementary angle. Its measure is _____.
Answer» LET the ANGLE be Φ then GIVEN that Φ = (90°-Φ) + 14° 2Φ = 104° Φ = 52° hence the REQUIRED angle is 52° hope it HELPS you

Discussion

6.	4x-3=9x-5
Answer» SOLUTION will be 2/5 for FIRST EQUATION and - 13/3 for SECOND equation.

Discussion

7.	Find the discriminant of 1/2 x^2 - 3x+5=0
Answer» ${b}^{2} - 4ac \\ {3 }^{2} - 4 \times 1 \div 2 \times 5 \\ 9 - 10 \\ - 1 < 0 \\$

Discussion

8.	A rectangle with adjacent sides of length 5cm and 4cm
Answer» The AREA is 20 SQ CM

Discussion

9.	Answer it fast......!!!!!!!!
Answer» X is equal to OPTION C that is 1. MAKE ME BRAINLIEST.

Discussion

10.	Write the linear equation 5y+6-2x=9in standard form and find the value of abc
Answer» STANDARD form is AX +by+c=0 -2x+5y+6-9=0 -2x+5y-3=0 it is in standard form now, by comparing, a=-2 b=5 c=-3 I hope U UNDERSTAND it☺️☺️

Discussion

11.	A motor boat can travel 30 km upstream and 28km down stream in 7hour it can travel 21km up stream and return in 5 hour find the speed of boat in still water and the speed of stream
Answer» hope it HELP u plz MARK as a BRAINLIEST & follow me

11.

A motor boat can travel 30 km upstream and 28km down stream in 7hour it can travel 21km up stream and return in 5 hour find the speed of boat in still water and the speed of stream

Answer»

hope it HELP u

plz MARK as a BRAINLIEST & follow me

Discussion

12.	Which is best oswaal question bank or exam guru question bank
Answer» Oswaal question bank is better and try to do THREE time in whole YEAR by which you know that your CONCEPT were strong and you are confident in exam. please please mark it brainleist

Discussion

13.	Five pairs of prime numbers less than 20whose sum is divided by 5
Answer» 1)- 2&3 2)-2&13 3)-3&17 4)-7&13 5)-13&17 6)-11&19 hope it is useful for you

Discussion

14.	Positive numbers negative numbers and zero together are called
Answer» +ve & -ve numbers with zero are CALLED integer. hope it HELP u plz mark as a BRAINLIEST & follow me

14.

Positive numbers negative numbers and zero together are called

Answer»

+ve & -ve numbers with zero are CALLED integer.

hope it HELP u

plz mark as a BRAINLIEST & follow me

Discussion

15.	Mental ability number series sum answer- 0,2,10,36,68,130 find the wrong term
Answer» The WRONG TERM is 36 Coz the logic is x^3 + x 0^3 + 0 = 0 + 0 = 0 2^3 + 2 = 8 + 2 = 10 3^3 +3 = 27 + 3 = 30 Cube of the number plus the same number so it should be 30 and not 36

15.

Mental ability number series sum answer- 0,2,10,36,68,130 find the wrong term

Answer»

The WRONG TERM is 36

Coz the logic is x^3 + x

0^3 + 0 = 0 + 0 = 0

2^3 + 2 = 8 + 2 = 10

3^3 +3 = 27 + 3 = 30

Cube of the number plus the same number so it should be 30 and not 36

Discussion

16.	Maths 0 ap how many terms must be added to get the sum 0
Answer» There will be infinite COMBINATIONS to GET sum ZERO such as 3 and - 3 etc...

Discussion

17.	Factorise 6abc-9a square c
Answer» 6abc-9a^2c=3ac(2b-3a) HOPE it is USEFUL for you

Discussion

18.	Find the square root of 423801 by division method
Answer» By division METHOD we GET ANSWER as 651.. CHECK it out

Discussion

19.	Factories 6ab-9a square c
Answer» 6ab-9ac^2 =3a(2b-3c^2

Discussion

20.	Factorise by splitting middle term 14y +19y -3
Answer» $hey \: mate \: here \: is \: your \: answer...$ $14 {y}^{2} + 19y - 3$ $14 {y}^{2} + (21 - 2)y - 3$ $14 {y}^{2} + 21y - 2y - 3$ $7y(2y + 3)( - 1(2y + 3)$ $(7y - 1)(2y + 3)$ $hope \: it \: helps....$

Discussion

21.	4p + 8p/7 - 3p/2 =16p/5 + 8/3
Answer» TAKE lcm 48p+16p-21p/14=49p+40/15 Cross MULTIPLY 720p+240p-315p=672p+560 645p=672p+560 -27p=560 P=20.7407407

Discussion

22.	What is Binomial theorem?
Answer» Binomial theorem Polynomial having only TWO TERMS are CALLED binomial. ( 'bi' means two) EX (3x-2)

Discussion

23.	I am having a doubt in mathematics that to in fractions that is 8×4 1 by 7
Answer» 8 X 41 / 7 = 328 /7 = 46.2...

Discussion

24.	By increasing the list price of a book by rupees 10 a person can buy 10 less book for rupees 1200 find the original price of the book
Answer» Here_Is_Your_Answer. Plz_Mark_It_As_Brainliest_Answer. And_Drop_A_♥.

Discussion

25.	LCM of two numbers is 28 and their HCF is 8 ? its true or false
Answer» Given: LCM of two numbers = 28 HCF of two numbers = 8 To Find: If the statement is TRUE or False Solution: SUPPOSE, if two numbers are x and y then their lcm will be = l and hcf will be = h Therefore, x × y = l × h x × y =28 × 8 = 224 However, = 28/8 = 3.5 Since 28 is not completely divisible by 8. Thus the HCF is not 8. Answer: The statement is False.

25.

LCM of two numbers is 28 and their HCF is 8 ? its true or false

Answer»

Given:

LCM of two numbers = 28

HCF of two numbers = 8

To Find:

If the statement is TRUE or False

Solution:

SUPPOSE, if two numbers are x and y

then their lcm will be = l and hcf will be = h

Therefore,

x × y = l × h

x × y =28 × 8

= 224

However,

= 28/8

= 3.5

Since 28 is not completely divisible by 8. Thus the HCF is not 8.

Answer: The statement is False.

Discussion

26.	900 in division method
Answer» Your QUESTION is not PROPER so PLEASE CHECK once

Discussion

27.	Ding the product using suitable properties b) 854×102 c)258×1008 D)1005×168
Answer» (a) 854 (100+2) 854100 +8542 =85400+1708 = 87108 (B) 258 (1000+8) 2581000+2588 =258000+2064 =260064 (c) (1000+5)168 1000168+5*168 168000+840 =168840 here is your solution buddy hope its HELP you

Discussion

28.	7x+5y=16.90 and 5x+7y=14.30 what is the value of x and y
Answer» OK OK OK OK OK OK OK OK OK ok

Discussion

29.	212114-214114 plz solve this sum
Answer» 212114-214114 = -2000

Discussion

30.	Mathematician who found the sum of first 100 natural numbers
Answer» The famous MATHEMATICIAN associated with FINDING the SUM of FIRST 100 natural NUMBERS is Gauss.

Discussion

31.	Log(xy) =x^2 +y^2 prove that dy/dx=y(2x^2-1)/x (1-2y^2)
Answer» HENCE PROVED.............

Discussion

32.	Please answer the above question. And also show how u solved
Answer» 90° because DB is 180° HALF of 180° is 90°

Discussion

33.	Plz solve this question.......
Answer» DIMENSION FIELD are. =50m40m. 30+ 20=50

Discussion

34.	How to find HCF of 120, 168 by long division method
Answer» HOPE it HELPS you !!!!

Discussion

35.	Vijay spends 1/3 of his yearly income on travelling , 2/3 of remaining on entertainment and 2/9 on other things and still saves Rs. 2940 . What is his yearly income. plzz tell me the answer.........
Answer» /SPENDS on travelling = 1/3 spends on entertainment = 2/3 spends on other THINGS =2/9 savings = 2940 formula = total income = savings DENOMINATOR1 d2d3/denominator 1-numerator1 d2-n2d3-n3 = 2940339/217 =42081/2 =21081 =17010 his yearly income = 17010

Discussion

36.	HOW TO SOLVE ROOT 5
Answer» ROOT 5 is solve by long division method of FINDING square root of NUMBER

Discussion

37.	In the adjoining figure line a \|\| line b line is a tranversal
Answer» 105 = X ( CORRESPONDING ANGLES) X = y = 105 ( Vertically opposite angles) z + 105= 180 ( linear pair) z = 180-105 z= 75

Discussion

38.	Please help me some question
Answer» HOPE this HELPS you....

Discussion

39.	C11 h22 o11 ? ans this question
Answer» SORRY to SAY but I don't KNOW the ANSWER but I will TR y it to do. ckhvok I do

Discussion

40.	Solve (1+CosxCos2xCos3x)÷Sin2x×Sin2x
Answer» TOUGH TRY it in NET.

Discussion

41.	the integer n is odd even only if any nsquare is odd also check whether the statement is true in contradiction method
Answer» Djfghgguuii SORRY but I NEED some POINTS

Discussion

42.	The area. of largest triangle that can be inscribed in a semicircle of radious r cm
Answer» The answer will be r^2 Here is how. A SEMICIRCLE has the largest triangle's BASE as it's diameter and it's perpendicular or height as it's RADIUS. :· 1/2 x 2 r x r = r^2 I think it's HELP U :-)

Discussion

43.	A drum of oil jas a capacity of 725 liters find the quantity of oil in 999 such drums
Answer» Oil in 1 DRUM = 725 Oil in 1000 DRUMS = 725 x 1000 = 725000 Oil in 999 drums = 725000 - 725 = 724275

43.

A drum of oil jas a capacity of 725 liters find the quantity of oil in 999 such drums

Answer»

Oil in 1 DRUM = 725

Oil in 1000 DRUMS = 725 x 1000 = 725000

Oil in 999 drums = 725000 - 725 = 724275

Discussion

44.	The coefficient of x in the expansion of (x + 3)³ is _____
Answer» $\textbf{Solution:}$ We use the FOLLOWING identity: 【 (X + y)³ = x³ + y³ + 3XY(x + y) 】 ⇢(x + 3)³ = x³ + 27 + 3(x)(3)( x + 3) ⇢(x + 3)³ = x³ + 27 + 9X(x + 3) ⇢(x + 3)³ = x³ + 27 + 9x² + 27x Therefore, the coefficient of x is 27. -»-»-»-»-»-»-»-»-»-» $\textbf{Hope it helps you!}$ -»-»-»-»-»-»-»-»-»-» ✪ Be Brainly ✪

Discussion

45.	364757575758668+73535353547353758
Answer» 424262892635372828_____ HOPE you LIKE

Discussion

46.	Savita has 27 rs.in the form of fifty paise and twenty five paise coins .she has twice as many twenty five paise coins as she has fifty paise coins. How many coins of each kind does she have ? Find the salutation based on class 8th.
Answer» 27rs=2700ps 25x+50y=2700 x=2y 100y=2700 y=27 27:50ps 54:25ps

Discussion

47.	Find sum to n terms from the following series 52,51,50 and so on till 25 term
Answer» Sum till n terms = n(n+1) / 2 So sum up to 52 = 52 (52+1) / 2 = 1378 ------(1) we need sum up to 25 terms so 52 - 25 = 27 Sum up to 27 = 27 * (27+1) / 2 = 27 * 28 / 2 = 27 * 14 = 378 ------(2) Subtracting (2) from (1) = 1378 - 378 = 1000 is the sum of 52,51,50 series upto 25 DIGITS

47.

Find sum to n terms from the following series 52,51,50 and so on till 25 term

Answer»

Sum till n terms = n*(n+1) / 2

So sum up to 52 = 52 * (52+1) / 2 = 1378 ------(1)

we need sum up to 25 terms so 52 - 25 = 27

Sum up to 27 = 27 * (27+1) / 2 = 27 * 28 / 2 = 27 * 14 = 378 ------(2)

Subtracting (2) from (1) = 1378 - 378 = 1000 is the sum of 52,51,50 series upto 25 DIGITS

Discussion

48.	Find the least number that should be added to 4236516 so that the result is exactly divisible by 456
Answer» Just divide the number to 456 then ADD the REMAINDER to 4236516 and then divide again to show if it is DIVIDING now

Discussion

49.	25x²-10x+1-49y² Factorise
Answer» OK this is you ANSWER my BOY

Discussion

50.	two unbaiseed coins are tossed simultaneously. find the probability of getting a)two head b) one head c) one tail d) no head e) at least one head
Answer» Four possibilities are TT ,HH,HT,TH. T stands for tail and H stands for head. a) probability of GETTING two HEADS =1/4. b) probability of getting one head=1/2. c) probability of getting one tail=1/2. d) probability of getting no head = 1/4. e) probability of atleast one head =3/4.

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

If x=√2+1/√2-1 and y=√2-1/√2+1 find the value of x^2+y^2-xy Provide complete answers please

Ratio of two number is 3:8 and the sum of square is 292.find the sum of number

The areas of two similar triangles are 12cm sq and 48 cm sq . if the height of the similar one is 2.1 cm , then the corresponding height of the bigger one is

Please answer the question given in the above image.

An angle is 14° more than its complementary angle. Its measure is _____.

4x-3=9x-5

Find the discriminant of 1/2 x^2 - 3x+5=0

A rectangle with adjacent sides of length 5cm and 4cm

Answer it fast......!!!!!!!!

Write the linear equation 5y+6-2x=9in standard form and find the value of abc

A motor boat can travel 30 km upstream and 28km down stream in 7hour it can travel 21km up stream and return in 5 hour find the speed of boat in still water and the speed of stream

Which is best oswaal question bank or exam guru question bank

Five pairs of prime numbers less than 20whose sum is divided by 5

Positive numbers negative numbers and zero together are called

Mental ability number series sum answer- 0,2,10,36,68,130 find the wrong term

Maths 0 ap how many terms must be added to get the sum 0

Factorise 6abc-9a square c

Find the square root of 423801 by division method

Factories 6ab-9a square c

Factorise by splitting middle term 14y +19y -3

4p + 8p/7 - 3p/2 =16p/5 + 8/3

What is Binomial theorem?

I am having a doubt in mathematics that to in fractions that is 8×4 1 by 7

By increasing the list price of a book by rupees 10 a person can buy 10 less book for rupees 1200 find the original price of the book

LCM of two numbers is 28 and their HCF is 8 ? its true or false

900 in division method

Ding the product using suitable properties b) 854×102 c)258×1008 D)1005×168

7x+5y=16.90 and 5x+7y=14.30 what is the value of x and y

212114-214114 plz solve this sum

Mathematician who found the sum of first 100 natural numbers

Log(xy) =x^2 +y^2 prove that dy/dx=y(2x^2-1)/x (1-2y^2)

Please answer the above question. And also show how u solved

Plz solve this question.......

How to find HCF of 120, 168 by long division method

Vijay spends 1/3 of his yearly income on travelling , 2/3 of remaining on entertainment and 2/9 on other things and still saves Rs. 2940 . What is his yearly income. plzz tell me the answer.........

HOW TO SOLVE ROOT 5

In the adjoining figure line a || line b line is a tranversal

Please help me some question

C11 h22 o11 ? ans this question

Solve (1+CosxCos2xCos3x)÷Sin2x×Sin2x

the integer n is odd even only if any nsquare is odd also check whether the statement is true in contradiction method

The area. of largest triangle that can be inscribed in a semicircle of radious r cm

A drum of oil jas a capacity of 725 liters find the quantity of oil in 999 such drums

The coefficient of x in the expansion of (x + 3)³ is _____

364757575758668+73535353547353758

Savita has 27 rs.in the form of fifty paise and twenty five paise coins .she has twice as many twenty five paise coins as she has fifty paise coins. How many coins of each kind does she have ? Find the salutation based on class 8th.

Find sum to n terms from the following series 52,51,50 and so on till 25 term

Find the least number that should be added to 4236516 so that the result is exactly divisible by 456

25x²-10x+1-49y² Factorise

two unbaiseed coins are tossed simultaneously. find the probability of getting a)two head b) one head c) one tail d) no head e) at least one head