332354 + Interview Questions in Secondary School in Math

1.	Find the square of the following using the identity ( a+b)=a2+2ab+b2. (a)... 610
Answer» The ANSWER is = 3,72,100

Discussion

2.	Find two numbers whose sum is 24 and whose products is maximum.
Answer» 15 And 9 is the ANSWER.

Discussion

3.	sum and product of two zeroes of x^4-4x^3-8x^2+36x-9 are 0 and -9 respectively.find the sum and product of its other two zeros
Answer» HOPE it HELPS....,......

Discussion

4.	Rationalize the denominator of each of the following 3 upon 2 root 5
Answer» 3/2√5 By RATIONALIZATION, (3×√5)/(2√5×√5) (3√5)/(2×5) (3√5)/10 I HOPE this will HELP you -by ABHAY

Discussion

5.	Two numbers differ by 3 and their product is 54. find the numbers.
Answer» Hii friend, LET the first NUMBER be X The the other number = (X-3) According to question, PRODUCT of two numbers=54 Therefore, (X-3) × X = 54 X²-3X = 54 X²-3X-54 = 0 X²-9X+6X -54 = 0 X(X-9) +6(X-9) = 0 (X-9) (X+6) = 0 X -9 = 0 OR X +6 = 0 X = 9 or X = -6 Therefore, First Number = 9 And, The second number = -6 HOPE IT WILL HELP YOU.... :-)

Discussion

6.	Find the average of 4.2 , 3.8 and 7.6
Answer» Answer: Average=4.2+3.8+7.6 by 3 =1 by 3× (4.2+3.8+7.6) =1 by3 ×(42 by 10×38 by 10×76 by 10) =1by3×(42+38+76 by 10) =1by3×(76+42+38 by 10) Step-by-step explanation: =1 by 3×156 by 10 =156 by 3 ×1 by 10 =52×1 by 10 =52 by 10 =5.2 Average=5.2 RUFF WORK 76 42 +38 _______ 156 _______ 3)156(52 15 _____ 0 6 6 ______ 0

6.

Find the average of 4.2 , 3.8 and 7.6

Answer»

Answer:

Average=4.2+3.8+7.6 by 3

=1 by 3× (4.2+3.8+7.6)

=1 by3 ×(42 by 10×38 by 10×76 by 10)

=1by3×(42+38+76 by 10)

=1by3×(76+42+38 by 10)

Step-by-step explanation:

=1 by 3×156 by 10

=156 by 3 ×1 by 10

=52×1 by 10

=52 by 10

=5.2

Average=5.2

RUFF WORK

76

42

+38

_______

156

_______

3)156(52

15

_____

0 6

6

______

0

Discussion

7.	a sum of rs 4558 is divided among arun santhosh and hari such that arun recives 20%more than hari and hari recives25% lessthan santhosh find Arun's share
Answer» Jdbdkkndbenbdhjsendbe

Discussion

8.	There are 312 mango bites, 260 eclairs, &156 coffee bites in a box. There are to be put in packets so that each packets contains same number of toffee. Find the maximum number of toffee in each packets
Answer» Hey!!!! ________ Maximum number of toffee in each packet => HCF(312,260,156) THUS by Prime Factorisation Method => 312 = 2³ x 3 x 13 => 260 = 2² x 5 x 13 => 156 = 2² x 3 x 13 Thus HCF = 2² x 13 => HCF = 52 Thus 52 toffees can be packed in each packet. The question was very chocolatey __________ Hope this helps ✌️

Discussion

9.	Add the product of (-13) and (-17) to the quotient of (-187) and 11
Answer» Product = (-13) (-17) = 221 quotient = (-187)/11 = -17 sum of TWO numbers = 221 + -17 = 221 - 17 = 204 this is the ANSWER if u like my answer pls mark mine as BRAINLIEST

Discussion

10.	Use euclids division algorithm to find if the following pair of numbers is co primes 121 and 573
Answer» 121<573 573=1214+89 121=891+32 89=322+25 32=251+7 25=73+4 7=41+3 4=31+1 3=13+0 i.e. HCF = 1 And HENCE both number are COPRIME

Discussion

11.	1.6lit of milk costs RS117 find the cost of 1lit
Answer» Here is your ANSWER it MAY HELP you..

Discussion

12.	Is 0.7 is a multiplicative inverse of 10/7
Answer» YES the MULTIPLICATIVE INVERSE of 10/7 is 7/10 that is 0.7..

Discussion

13.	Find 2 rational number between -3 and -2
Answer» Here is your ANSWER it MAY HELP you...

Discussion

14.	Find the zeros of quadratic polynomial 3 x square - x minus 4
Answer» 3x²-x-4=3x²-4x+3x-4 =x(3x-4)+3(x-4) =(x+3) (3x-4) =x=4/3,-3

Discussion

15.	Find HCF and LCM of 6,72,120give fast
Answer» The answer is given below : The given numbers are 6, 72 and 120. By prime factorization method, we find 6 = 2 × 3 72 = 2 × 2 × 2 × 3 × 3 120 = 2 × 2 × 2 × 3 × 5 HCF = HIGHEST COMMON FACTOR, i.e., the common FACTORS of all the THREE numbers So, required HCF = 2 × 3 = 6 LCM = LEAST COMMON MULTIPLE, i.e., the number multipled by all the three numbers So, required LCM = 2 × 3 × 2 × 2 × 3 × 5 = 360 Thank you for your question.

Discussion

16.	Who is known as big B
Answer» ONE is AMITABH bachan and ANOTHER one is HEMANT brijwasi

Discussion

17.	Given that hcf (306,675)=9,find lcm of(306,657)
Answer» Lcm=306x675/9=22950 HOPE it will helpu

Discussion

18.	(x)2+5√5x+30 rs agarwal
Answer» ${x}^{2} + 5 \sqrt{5x} + 30 \\ {x}^{2} +3 \sqrt{5x} + 2 \sqrt{5x} + 30 \\ x(x + 3 \sqrt{5} ) + 2 \sqrt{5} (x + 3 \sqrt{5} ) \\ (x + 2 \sqrt{5} )(x + 3 \sqrt{5} ) \\ x = - 2 \sqrt{5 } \\ x = - 3 \sqrt{5} \\ hope \: its \: help \: u...$

Discussion

19.	The parallel sides of a trapezium are 40cm and 16cm. It’s non-parallel sides are 13cm each.find the area of the trapezium
Answer» Here is your ANSWER it MAY HELP you..

Discussion

20.	the angle B of a triangle ABC is thrice the difference of the other two angles also the ratio of the angle A to the angle c is 5:7. find the angle
Answer» A = 50° B = 60° C = 70° The explanation is :- A:C = 5:7 therefore, A = 5x, C = 7X Now, B = 3(DIFFERENCE of A and C) the difference of A and C is 7x - 5x so, B = 3(7x - 5x) B = 3 × 2x B = 6x A = 5x, B = 6x, C = 7x According to ANGLE sum property, A+B+C=180° 5x+6x+7x=180° 18x=180° x=10° A=50°,B=60°,C=70°

Discussion

21.	Find the square root of 4937284 by long division method
Answer» So,√4937284=2222 (By LONG DIVISION METHOD)

Discussion

22.	Find three rational numbers between 1/4 and 1/5
Answer» MARK it as BRAINLIEST

Discussion

23.	(cosec theta + sin theta) (cosec theta - sin theta) = (cot^2theta + cos^2 theta)
Answer» This can be WRITTEN as (cosec²Q-Sin²Q). USING a²-b²=(a+b)(a-b) ((1+cot²Q)-(1-cos²Q)) (1+cot²Q-1+cos²Q) (cot²Q-cos²Q) HOPE this HELPS..

Discussion

24.	A distribution consists of three components with frequencies 300, 200 and 600 having their means 16,8 and 4 respectively. Find the mean of the combined distribution.
Answer» HII ...here your ANSWER MEAN =300+200+600+16+8+4/6 =1128/6 =188(ANS.)

Discussion

25.	1/2a+b+2x= 1/2a + 1/b+ 1/2x
Answer» ⇒ $\frac{1}{2a + b + 2x} = \frac{1}{2a} + \frac{1}{b} + \frac{1}{2x}$ ⇒ $\frac{1}{2a + b + 2x} - \frac{1}{2x} = \frac{1}{2a} + \frac{1}{b}$ ⇒ $\frac{2x - 2a - b - 2x}{(2x)(2a+b +2x) }= \frac{b + 2a}{2ab}$ ⇒ $\frac{-1(2a+ b)}{(2x)(2a +b + 2x)} = \frac{b+ 2a}{2ab}$ ⇒ $\frac{-1}{(2x)(2a+b+2x)} = \frac{1}{2ab}$ *Cross MULTIPLY* ⇒ -2ab = (2x)(2a + b+ 2x) ⇒ $-2ab = 4ax + 2xb + 4x^2$ ⇒ 0= 4ax + 4x² + 2xb + 2ab ⇒ 0= 4x(a + X) + 2b(x + a) ⇒ 0= (x + a) (4x + 2b) *By Zero Product Rule* ⇒ x + a = 0 OR 4x + 2b = 0 ⇒ x= -a OR 4x = -2b ⇒ x = -a OR $x = \frac{-2b}{4} = \frac{-b}{2}$ i HOPE this will help you -by ABHAY

Discussion

26.	With a uniform speed a car covers a distance in 8 hours.were the speed increased by 4 km/hr the same distance could be covered in 71/2 hours what is the distance covered
Answer» Ans is 160 KM and I have ALREADY ATTACHED the SOLUTION.

Discussion

27.	Take two digits, say 2 and 3. Make 4-digit numbers using both the digits equal number of times. 1.Which is the greatest number? 2.Which is the smallest number? 3. How many different numbers can you make in all?
Answer» 1 3322 2 2233 3 3322 2233 3232 2323

Discussion

28.	a person X has four notes of rupee 1,2,5,10 denomination.the number of different sums of money she can form from them is?
Answer» 0

Discussion

29.	Plzz answer me frnds. ....
Answer» √216 = √(6×6×6) = 6√6 √96 = √(6×4×4) = 4√6 PUT UN GIVEN QUESTION √6 - 6√6 + 4√6 = - √6

Discussion

30.	A big kingfish weight 8 kg she sold it in Rs.960 . Find the cost of 1kg fish
Answer» Hi friend here is the answer cost of 1 KG fish is equal to 960/ 8 that is ₹120. hope it helps you if possible please MARK my answer as brainliest

Discussion

31.	three Bells rings at an interval interval of 20 minutes 25 minutes and 30 minutes respectively if the Rings together at 11 a.m at what time they will ring together again
Answer» To find the MINIMUM time,we have to find the LCM of 20,25,30 20=225 25=55 30=325 LCM =2235*5 =300 minutes =5 hours therefore,at 4 p.m, they will MEET again

Discussion

32.	Square root of 1000 by estimate to the nearest to one decimal place
Answer» HEY pratik !!!! here is UR answer square root of 1000 is nearly 31.62 so after round off it becomes 31.6 hope it would HELP you

Discussion

33.	If Q(0,1) is equidistant from P(5,-3) and R(x,6),find the values of x.Also find the distances QR and PR.
Answer» QP = QR QP^2 = QR^2 => (5 - 0)^2 + (-3 - 1)^2 = (X - 0)^2 + (6 - 1)^2 => 25 + 16 = x^2 + 25 => x^2 = 16 => x = ± 4 Hence R is (4 , 6) or (- 4 , 6) Now QR (0 , 1)(4 , 6) QR = $\bf\huge\sqrt{(4 - 0)^2 + (6 - 1)^2}$ QR = $\bf\huge\sqrt{(16 + 25)}$ QR = $\bf\huge\sqrt{41}$ Also QR (0 , 1) (-4 , 6) QR = $\bf\huge\sqrt{(- 4 - 0)^2 + (6 - 1)^2}$ QR = $\bf\huge\sqrt{16 + 25}$ QR = $\bf\huge\sqrt{41}$ Now PR (5 , -3)(4 , 6) PR = $\bf\huge\sqrt{(4 - 5)^2 + (6 + 3)^2}$ PR = $\bf\huge\sqrt{1 + 81}$ PR = $\bf\huge\sqrt{82}$ Also PR (5 , -3)(-4 , 6) PR = $\bf\huge\sqrt{(-4 - 5)^2 + (6 + 3)^2}$ PR = $\bf\huge\sqrt{81 + 81}$ PR = $\bf\huge 9 \sqrt{2}$

33.

If Q(0,1) is equidistant from P(5,-3) and R(x,6),find the values of x.Also find the distances QR and PR.

Answer»

QP = QR

QP^2 = QR^2

=> (5 - 0)^2 + (-3 - 1)^2 = (X - 0)^2 + (6 - 1)^2

=> 25 + 16 = x^2 + 25

=> x^2 = 16

=> x = ± 4

Hence R is (4 , 6) or (- 4 , 6)

Now

QR (0 , 1)(4 , 6)

QR = $\bf\huge\sqrt{(4 - 0)^2 + (6 - 1)^2}$

QR = $\bf\huge\sqrt{(16 + 25)}$

QR = $\bf\huge\sqrt{41}$

Also

QR (0 , 1) (-4 , 6)

QR = $\bf\huge\sqrt{(- 4 - 0)^2 + (6 - 1)^2}$

QR = $\bf\huge\sqrt{16 + 25}$

QR = $\bf\huge\sqrt{41}$

Now

PR (5 , -3)(4 , 6)

PR = $\bf\huge\sqrt{(4 - 5)^2 + (6 + 3)^2}$

PR = $\bf\huge\sqrt{1 + 81}$

PR = $\bf\huge\sqrt{82}$

Also

PR (5 , -3)(-4 , 6)

PR = $\bf\huge\sqrt{(-4 - 5)^2 + (6 + 3)^2}$

PR = $\bf\huge\sqrt{81 + 81}$

PR = $\bf\huge 9 \sqrt{2}$

Discussion

34.	How many triangle are there in this figure
Answer» There are 34 TRIANGLES here...

Discussion

35.	If the HCF of 45 and 210 is expressible in the form 210x +45*5 find x
Answer» HOPE this HELPS you....

Discussion

36.	If a=4/3-root5 find the value of a+4/a
Answer» HOPE it's HELP you ......

Discussion

37.	What is to be added to 2^36 to get 2^37?
Answer» LET the NUMBER to be ADDED be x. according to QUESTION, =>x+2^36=2^37. =>x=2^37-2^36 =2^36

Discussion

38.	Rationalise the denominator and simplify under root 7 + under root 2 by 9 + 2 under root 14
Answer» HELLO MATE! $\frac{ \sqrt{7} + \sqrt{2} }{9 + 2 \sqrt{14} } \\ \\ rationalize \\ \\ \frac{ \sqrt{7} + \sqrt{2} }{9 + 2 \sqrt{14} } \times \frac{9 - 2 \sqrt{14} }{9 - 2 \sqrt{14} } \\ \frac{9 \sqrt{7} - 2 \sqrt{98} + 9 \sqrt{2} - 2 \sqrt{28} }{81 - 56} \\ \sqrt{98 } = \sqrt{2 \times 7 \times 7} = 7 \sqrt{2} \\ \sqrt{28} = \sqrt{2 \times 2 \times 7} = 2 \sqrt{7} \\ \frac{9 \sqrt{7} - 14 \sqrt{2} + 9 \sqrt{2} - 4 \sqrt{7} }{25} \\ \frac{5 \sqrt{7} - 5 \sqrt{2} }{25} = \frac{5 \sqrt{7} }{25} - \frac{5 \sqrt{2} }{25} \\ \frac{ \sqrt{7} - \sqrt{2} }{5}$ HOPE it helps☺!

Discussion

39.	Lim e^-x-e^x÷x-1. approach to 0
Answer» HOPE it can HELP you

Discussion

40.	9/8 ÷ (.....) = -3/2
Answer» 9/8 × y = -3/2 y × 3/4 =-1 y=-4/3

Discussion

41.	If 3/11 of a number is 22 what is 6/11 of that number
Answer» 3/11 of a NUMBER = 22 6/11 of the number = 2 * 3/11 of the number = 2*22 = 44 Hope it HELPS.

Discussion

42.	(9x)2+18x+8 class 9 CBSE
Answer» Well, $9 {x}^{2} + 18x + 8 = 0$ SINCE factors of 72 that gives 18 on addition are 12 and 6. So, $9 {x}^{2} + 12x + 6x + 8 = 0$ $3x(3x + 4) + 2(3x + 4) = 0$ $(3x + 2) \: (3x + 4)$ $x = \frac{ - 4}{3} \: and \: \frac{ - 2}{3}$ HOPE it helps Yours Truly Yumieo

Discussion

43.	6 divided by 2 root 3 is a rational or irrational numbers
Answer» The answer is given below : We need to find if 6/(2√3) is a rational NUMBER or an irrational number. Now, 6/(2√3) = (3 × 2)/(2 × √3) = 3/√3 = (√3 × √3)/√3 = √3 and since √3 is an irrational number, 6/(2√3) is also an irrational number. IRRATIONAL NUMBER : The number which cannot be expressed into the form p/Q, where p and q are INTEGERS with q ≠ 0, is CALLED an irrational number. Example : √2, √3, √5, and so on. Thank you for your question.

Discussion

44.	Decide the numbers to which number sets they belong to and does not belong to and express with correct symbols 1
Answer» 1+2 =3÷3 =1 5+1-5 =1 1 2÷7+ 34

Discussion

45.	A cylinder with base radius 8 cm and height 2cm is melted to form a cone of height 6 cm. The radius of the cone will be
Answer» VOLUME of cylinder = Volume of cone πR²H = 1/3πr²h R = RADIUS of cylinder ; H = HIEGHT of cylinder ; r = radius of cone ; h = hieght of cone ⇒R²H = 1/3 × r² × h 8² × 2 = 1/3 × r² × 6 64 × 2 = r² × 2 64 = r² ⇒ r = √64 = 8cm ∴Radius of cone = 8 cm I HOPES IT HELPS YOU IF IT IS HELPFUL PLEASE MARK IT AS BRAINLIEST

Discussion

46.	Simplify:-. 3a-2b-ab-(a-b+ab)+3ab+b-a
Answer» According to given SUM, => 3a-2b-ab-(a-b+ab)+3ab+b-a => 3a-2b-ab-a+b-ab+3ab+b-a => 3a-2a+3ab-2ab => a+ab . :-)HOPE it helps U.

Discussion

47.	Mangoes are sold at ₹ 87/2 per kg . what is the weight of mangoes available for ₹1305/4?
Answer» 1 KG 87.2 ? 1305.4 = 1305.4/87.2 = 14 kg 940 GRAMS

Discussion

48.	For what value of x will 2x+1/3x-2 and 3x-4/x+8 represent the same fraction also find the fraction
Answer» Hi , It is given that , ( 2x + 1 )/( 3x - 2 ) = ( 3x - 4 )/( x + 8 ) ( 2x + 1 )( x + 8 ) = ( 3x - 4 )( 3x - 2 ) 2x² + 16X + x + 8 = 9x² - 6x - 12x + 8 2x² + 17x + 8 = 9x² - 18x + 8 0 = 9x² - 18x + 8 - 2x² - 17x - 8 0 = 7x² - 35x 7x² - 35x = 0 7x( x - 5 ) = 0 Therefore , 7x = 0 or x - 5 = 0 x = 0 or x = 5 I hope this helps you. : )

Discussion

49.	Square root of 82.6 correct to two places of decimal
Answer» HI , 9 ) 82.600000(9.088 **81 ___________ 180) 160 **000 ___________ 1808) 16000 ****14464 ____________ 18168)153600 ****145344 ____________ ********8256 Therefore, √ 82.6 ≈ 9.088 ≈ 9.09 I HOPE this HELPS you. : )

Discussion

50.	How many tens in 6000
Answer» 6000 CONTAINS 600 tens.. HOPE i m RIGHT :-)

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Find the square of the following using the identity ( a+b)=a2+2ab+b2. (a)... 610

Find two numbers whose sum is 24 and whose products is maximum.

sum and product of two zeroes of x^4-4x^3-8x^2+36x-9 are 0 and -9 respectively.find the sum and product of its other two zeros

Rationalize the denominator of each of the following 3 upon 2 root 5

Two numbers differ by 3 and their product is 54. find the numbers.

Find the average of 4.2 , 3.8 and 7.6

a sum of rs 4558 is divided among arun santhosh and hari such that arun recives 20%more than hari and hari recives25% lessthan santhosh find Arun's share

There are 312 mango bites, 260 eclairs, &156 coffee bites in a box. There are to be put in packets so that each packets contains same number of toffee. Find the maximum number of toffee in each packets

Add the product of (-13) and (-17) to the quotient of (-187) and 11

Use euclids division algorithm to find if the following pair of numbers is co primes 121 and 573

1.6lit of milk costs RS117 find the cost of 1lit

Is 0.7 is a multiplicative inverse of 10/7

Find 2 rational number between -3 and -2

Find the zeros of quadratic polynomial 3 x square - x minus 4

Find HCF and LCM of 6,72,120give fast

Who is known as big B

Given that hcf (306,675)=9,find lcm of(306,657)

(x)2+5√5x+30 rs agarwal

The parallel sides of a trapezium are 40cm and 16cm. It’s non-parallel sides are 13cm each.find the area of the trapezium

the angle B of a triangle ABC is thrice the difference of the other two angles also the ratio of the angle A to the angle c is 5:7. find the angle

Find the square root of 4937284 by long division method

Find three rational numbers between 1/4 and 1/5

(cosec theta + sin theta) (cosec theta - sin theta) = (cot^2theta + cos^2 theta)

A distribution consists of three components with frequencies 300, 200 and 600 having their means 16,8 and 4 respectively. Find the mean of the combined distribution.

1/2a+b+2x= 1/2a + 1/b+ 1/2x

With a uniform speed a car covers a distance in 8 hours.were the speed increased by 4 km/hr the same distance could be covered in 71/2 hours what is the distance covered

Take two digits, say 2 and 3. Make 4-digit numbers using both the digits equal number of times. 1.Which is the greatest number? 2.Which is the smallest number? 3. How many different numbers can you make in all?

a person X has four notes of rupee 1,2,5,10 denomination.the number of different sums of money she can form from them is?

Plzz answer me frnds. ....

A big kingfish weight 8 kg she sold it in Rs.960 . Find the cost of 1kg fish

three Bells rings at an interval interval of 20 minutes 25 minutes and 30 minutes respectively if the Rings together at 11 a.m at what time they will ring together again

Square root of 1000 by estimate to the nearest to one decimal place

If Q(0,1) is equidistant from P(5,-3) and R(x,6),find the values of x.Also find the distances QR and PR.

QP = QR

QP^2 = QR^2

=> (5 - 0)^2 + (-3 - 1)^2 = (X - 0)^2 + (6 - 1)^2

=> 25 + 16 = x^2 + 25

=> x^2 = 16

=> x = ± 4

Hence R is (4 , 6) or (- 4 , 6)

Now

QR (0 , 1)(4 , 6)

Also

QR (0 , 1) (-4 , 6)

Now

PR (5 , -3)(4 , 6)

Also

PR (5 , -3)(-4 , 6)

How many triangle are there in this figure

If the HCF of 45 and 210 is expressible in the form 210x +45*5 find x

If a=4/3-root5 find the value of a+4/a

What is to be added to 2^36 to get 2^37?

Rationalise the denominator and simplify under root 7 + under root 2 by 9 + 2 under root 14

Lim e^-x-e^x÷x-1. approach to 0

9/8 ÷ (.....) = -3/2

If 3/11 of a number is 22 what is 6/11 of that number

(9x)2+18x+8 class 9 CBSE

6 divided by 2 root 3 is a rational or irrational numbers

Decide the numbers to which number sets they belong to and does not belong to and express with correct symbols 1

A cylinder with base radius 8 cm and height 2cm is melted to form a cone of height 6 cm. The radius of the cone will be

Simplify:-. 3a-2b-ab-(a-b+ab)+3ab+b-a

Mangoes are sold at ₹ 87/2 per kg . what is the weight of mangoes available for ₹1305/4?

For what value of x will 2x+1/3x-2 and 3x-4/x+8 represent the same fraction also find the fraction

Square root of 82.6 correct to two places of decimal

How many tens in 6000