25365 + Interview Questions in Mathematics

1.	Calculate the compound interest for second year on Rs.8,000 invested for 3 years at 10% p.a.
Answer» Calculate the compound interest for second year on Rs.8,000 invested for 3 years at 10% p.a.

Discussion

2.	Find the value of x2 for x belongs to [-5,-1]
Answer» Find the value of x² for x belongs to [-5,-1]

Discussion

3.	Find the smallest value of 'a' if 3a9 is divisible by 9.6
Answer» Find the smallest value of 'a' if 3a9 is divisible by 9. 6

Discussion

4.	A field is in a form of rhombus having each side as 81 and altitude 25 m.what is the side of the square field which has the same area as that of the rhombus?
Answer» A field is in a form of rhombus having each side as 81 and altitude 25 m.what is the side of the square field which has the same area as that of the rhombus?

Discussion

5.	Which of the following is equal to (x+2)(x+3)?
Answer» Which of the following is equal to $(x + 2) (x + 3) ?$

5.

Which of the following is equal to (x+2)(x+3)?

Answer»

Which of the following is equal to $(x + 2) (x + 3) ?$

Discussion

6.	The value of (x+2y)3 is _______.
Answer» The value of $(x + 2 y)^{3}$ is _______.

Discussion

7.	The area of a circle with radius 28 cm is __________ square cm.
Answer» The area of a circle with radius 28 cm is __________ square cm.

Discussion

8.	Price of oil increased by 10% so its sale was reduced by 5%. Find the efect on the income of the shopkeeper.
Answer» Price of oil increased by 10% so its sale was reduced by 5%. Find the efect on the income of the shopkeeper.

Discussion

9.	Question 1 The following are the marks (out of 100) of 60 students in Mathematics. 16, 13, 5, 80, 86, 7, 51, 48, 24, 56, 70, 19, 61, 17, 16, 36, 34, 42, 34, 35, 72, 55, 75, 31, 52, 28, 72, 97, 74, 45, 62, 68, 86, 35, 85, 36, 81, 75, 55, 26, 95, 31, 7, 78, 92, 62, 52, 56, 15, 63, 25, 36, 54, 44, 47, 27, 72, 17, 4, 30. Construct a grouped frequency distribution table with width 10 of each class starting from 0 - 9.
Answer» Question 1 The following are the marks (out of 100) of 60 students in Mathematics. 16, 13, 5, 80, 86, 7, 51, 48, 24, 56, 70, 19, 61, 17, 16, 36, 34, 42, 34, 35, 72, 55, 75, 31, 52, 28, 72, 97, 74, 45, 62, 68, 86, 35, 85, 36, 81, 75, 55, 26, 95, 31, 7, 78, 92, 62, 52, 56, 15, 63, 25, 36, 54, 44, 47, 27, 72, 17, 4, 30. Construct a grouped frequency distribution table with width 10 of each class starting from 0 - 9.

Discussion

10.	Which of the following ratio is greater than 5:11?
Answer» Which of the following ratio is greater than 5:11?

Discussion

11.	(i) In how many years will Rs. 950 produce Rs. 399 as simple interest at 7%? (ii) Find the time in which Rs. 1200 will amount to Rs. 1536 at 3.5% per year?
Answer» (i) In how many years will Rs. 950 produce Rs. 399 as simple interest at 7%? (ii) Find the time in which Rs. 1200 will amount to Rs. 1536 at 3.5% per year?

Discussion

12.	Aditya borrowed ₹ 30,000 from a bank to buy a Washing machine at a rate of 10% interest p.a. compounded yearly. What amount will he pay at the end of 2 years and 4 months to clear the loan?
Answer» Aditya borrowed ₹ 30,000 from a bank to buy a Washing machine at a rate of 10% interest p.a. compounded yearly. What amount will he pay at the end of 2 years and 4 months to clear the loan?

Discussion

13.	There was a race held in your school and you wanted to watch the race and went to the ground. Three people started from A, B and C and stopped at the end point. Since the starting point is different for all, you felt that the game is not fair. However, a friend of yours told you that the radius of the track B is more than radius of track A and hence everybody runs the same distance. He then asked you to find out the radius of track B, given that the radius of track A is 14m and distance between B and the end point is 22 m (as given in the figure). What is the radius of track B.
Answer» There was a race held in your school and you wanted to watch the race and went to the ground. Three people started from A, B and C and stopped at the end point. Since the starting point is different for all, you felt that the game is not fair. However, a friend of yours told you that the radius of the track B is more than radius of track A and hence everybody runs the same distance. He then asked you to find out the radius of track B, given that the radius of track A is 14m and distance between B and the end point is 22 m (as given in the figure). What is the radius of track B.

13.

There was a race held in your school and you wanted to watch the race and went to the ground. Three people started from A, B and C and stopped at the end point. Since the starting point is different for all, you felt that the game is not fair. However, a friend of yours told you that the radius of the track B is more than radius of track A and hence everybody runs the same distance. He then asked you to find out the radius of track B, given that the radius of track A is 14m and distance between B and the end point is 22 m (as given in the figure). What is the radius of track B.

Answer»

There was a race held in your school and you wanted to watch the race and went to the ground. Three people started from A, B and C and stopped at the end point. Since the starting point is different for all, you felt that the game is not fair.

However, a friend of yours told you that the radius of the track B is more than radius of track A and hence everybody runs the same distance. He then asked you to find out the radius of track B, given that the radius of track A is 14m and distance between B and the end point is 22 m (as given in the figure). What is the radius of track B.

Discussion

14.	In a class, 60% of the students are girls and there are 20 boys. What is the strength of the class?
Answer» In a class, 60% of the students are girls and there are 20 boys. What is the strength of the class?

Discussion

15.	Define commutative property of addition of integers with the help of an example. [2 MARKS]
Answer» Define commutative property of addition of integers with the help of an example. [2 MARKS]

Discussion

16.	Statement 1: Frequency of an observation gives number of occurrences of that particular observation. Statement 2: Frequency is represented on the y-axis of the bar graph.
Answer» Statement 1: Frequency of an observation gives number of occurrences of that particular observation. Statement 2: Frequency is represented on the y-axis of the bar graph.

16.

Statement 1: Frequency of an observation gives number of occurrences of that particular observation. Statement 2: Frequency is represented on the y-axis of the bar graph.

Answer»

Statement 1: Frequency of an observation gives number of occurrences of that particular observation.

Statement 2: Frequency is represented on the y-axis of the bar graph.

Discussion

17.	Fill in the blanks: 62+72+ ___ =432 is
Answer» Fill in the blanks: $6^{2} + 7^{2} +$ ___ $= 43^{2}$ is

Discussion

18.	A man spent 25 % of his salary in the first week and 2623 % of the remainder in the second week and found that his overall expenditure was ₹180. Find his salary.
Answer» A man spent 25 % of his salary in the first week and $26 \frac{2}{3}$ % of the remainder in the second week and found that his overall expenditure was ₹180. Find his salary.

Discussion

19.	If S is the event that it will rain tomorrow and P(S) = 0.3. Find P(S').
Answer» If S is the event that it will rain tomorrow and P(S) = 0.3. Find P(S').

Discussion

20.	7×10−30.07×10−1
Answer» $7 \times 10^{- 3}$ $0.07 \times 10^{- 1}$

Discussion

21.	ABCD is a rectangle, if ∠BPC=124∘ Calculate ∠BAP
Answer» ABCD is a rectangle, if $∠ B P C = 124^{\circ}$ Calculate $∠ B A P$

21.

ABCD is a rectangle, if ∠BPC=124∘ Calculate ∠BAP

Answer»

ABCD is a rectangle, if $∠ B P C = 124^{\circ}$

Calculate $∠ B A P$

Discussion

22.	__m is the base of a parallelogram so that the area is 136 m2 with a given height is 8m.
Answer» __m is the base of a parallelogram so that the area is 136 $m^{2}$ with a given height is 8m.

Discussion

23.	By selling a saree for₹ 3000 the shopkeeper made a profit of 20% what is the cp
Answer» By selling a saree for₹ 3000 the shopkeeper made a profit of 20% what is the cp

Discussion

24.	The perimeter of a triangle is 6p2−4p+9 and two of its sides are p2−2p+1 and 3p2−5p+3. Find the third side of the triangle.
Answer» The perimeter of a triangle is $6 p^{2} - 4 p + 9$ and two of its sides are $p^{2} - 2 p + 1$ and $3 p^{2} - 5 p + 3$ . Find the third side of the triangle.

Discussion

25.	How is the interest calculated for savings account?
Answer» How is the interest calculated for savings account?

Discussion

26.	To find three rational number between 0 and3/4 and -5/11 and 0 wheather we have to multiply by 2 or not ? What is the step to solve this ?
Answer» To find three rational number between 0 and3/4 and -5/11 and 0 wheather we have to multiply by 2 or not ? What is the step to solve this ?

Discussion

27.	The numerator of a rational number is greater than its denominator by 5. If the numerator is decreased by 8 and the denominator is increased by 7, the new number obtained is 3/5. Find the number.
Answer» The numerator of a rational number is greater than its denominator by 5. If the numerator is decreased by 8 and the denominator is increased by 7, the new number obtained is 3/5. Find the number.

Discussion

28.	(x/3)+4=2
Answer» (x/3)+4=2

Discussion

29.	In a 2 digit number,the sum of digits is 7. If the difference of 2 digit number and number obtained by reversing the digit 9, then find the number
Answer» In a 2 digit number,the sum of digits is 7. If the difference of 2 digit number and number obtained by reversing the digit 9, then find the number

Discussion

30.	If a = 0.1039, then the value of 3a−√4a2−4a+1 is
Answer» If a = 0.1039, then the value of $3 a - \sqrt{4 a^{2} - 4 a + 1}$ is

Discussion

31.	(25a3)÷(−5a)= _____
Answer» $(25 a^{3}) \div (- 5 a) =$ _____

Discussion

32.	In an examination, the pass mark is 49 of the total marks. If Rajnish scores 45% out of a total of 810, by how much does he exceed the pass mark?
Answer» In an examination, the pass mark is $\frac{4}{9}$ of the total marks. If Rajnish scores 45% out of a total of 810, by how much does he exceed the pass mark?

Discussion

33.	When a coin is tossed once what are the possible outcomes?
Answer» When a coin is tossed once what are the possible outcomes?

Discussion

34.	The surface area of a cube with length of side 18 cm is ___ cm2.
Answer» The surface area of a cube with length of side 18 cm is ___ $c m^{2}$ .

Discussion

35.	Question 16 Fill in the blanks to make each statement true: In a linear equation, the ................ power of the variable appearing in the equation is one.
Answer» Question 16 Fill in the blanks to make each statement true: In a linear equation, the ................ power of the variable appearing in the equation is one.

35.

Question 16 Fill in the blanks to make each statement true: In a linear equation, the ................ power of the variable appearing in the equation is one.

Answer»

Question 16

Fill in the blanks to make each statement true:

In a linear equation, the ................ power of the variable appearing in the equation is one.

Discussion

36.	The sum of two consecutive multiples of 13 is 117. One of these multiples is
Answer» The sum of two consecutive multiples of 13 is 117. One of these multiples is

Discussion

37.	Find the value of 87−114
Answer» Find the value of $\frac{8}{7} - \frac{1}{14}$

Discussion

38.	Q73. Rohini correctly remembers that her Father’s birthday is before twenty fourth May but after Twentieth May, whereas his sister correctly remembers that their mother’s birthday is not on or after twenty Third May. On which day in May is definitely their mother’s birthday?
Answer» Q73. Rohini correctly remembers that her Father’s birthday is before twenty fourth May but after Twentieth May, whereas his sister correctly remembers that their mother’s birthday is not on or after twenty Third May. On which day in May is definitely their mother’s birthday?

Discussion

39.	Factorise Completely : 16x4−81y4
Answer» Factorise Completely : $16 x^{4} - 81 y^{4}$

Discussion

40.	The regular polygon whose exterior angle is 40∘ is a:
Answer» The regular polygon whose exterior angle is $40^{\circ}$ is a:

Discussion

41.	The tens digit in a two digit number is twice the units digit.If 18 is subtracted from the number,the digits are reversed.find the number.
Answer» The tens digit in a two digit number is twice the units digit.If 18 is subtracted from the number,the digits are reversed.find the number.

Discussion

42.	A linear equation can be graphically represented as:
Answer» A linear equation can be graphically represented as:

Discussion

43.	Which of the following expressions are polynomials? (i) x2+4 (ii) 4−x−1 (iii) 2x2−2x
Answer» Which of the following expressions are polynomials? (i) $x^{2} + 4$ (ii) $4 - x^{- 1}$ (iii) $2 x^{2} - \frac{2}{x}$

Discussion

44.	The angle between the two tangents from the origin to the circle (x−7)2+(y+1)2=25 is
Answer» The angle between the two tangents from the origin to the circle $(x - 7)^{2} + (y + 1)^{2} = 25$ is

Discussion

45.	Find the values of A, B and C, when 4 6 A - C B 9 _______ 1 7 7
Answer» Find the values of A, B and C, when 4 6 A - C B 9 _______ 1 7 7

45.

Find the values of A, B and C, when 4 6 A - C B 9 _______ 1 7 7

Answer»

Find the values of A, B and C, when

4 6 A

- C B 9

_______

1 7 7

Discussion

46.	According to the question an unbiased dice is thrown and the probability of getting an even no. And a multiple of 3 is 1/6... But zero is also a even and a multiple of 3 (proof: 2-2 is 0 and 3*0 is 0 respectively)... So answer should be 2/6 ie. 1/3... Please clear my doubt. 😃
Answer» According to the question an unbiased dice is thrown and the probability of getting an even no. And a multiple of 3 is 1/6... But zero is also a even and a multiple of 3 (proof: 2-2 is 0 and 3*0 is 0 respectively)... So answer should be 2/6 ie. 1/3... Please clear my doubt. 😃

Discussion

47.	A man travelled 1/8 th of his journey by Bus ,1/4 th by a taxi and 3/5 th by a train and the remaining 8 KM on foot.What is the length of his total journey
Answer» A man travelled 1/8 th of his journey by Bus ,1/4 th by a taxi and 3/5 th by a train and the remaining 8 KM on foot.What is the length of his total journey

Discussion

48.	Question 7(iv) Using a2−b2=(a+b)(a−b), find 12.12−7.92
Answer» Question 7(iv) Using $a^{2} - b^{2} = (a + b) (a - b),$ find ${12.1}^{2} - {7.9}^{2}$

Discussion

49.	Question 2(iv) Factorise the following expressions −16z+20z3
Answer» Question 2(iv) Factorise the following expressions $- 16 z + 20 z^{3}$

Discussion

50.	If one factor of x2 + 7x + 10 is (x + 2) then the other factor is:
Answer» If one factor of x² + 7x + 10 is (x + 2) then the other factor is:

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Calculate the compound interest for second year on Rs.8,000 invested for 3 years at 10% p.a.

Find the value of x2 for x belongs to [-5,-1]

Find the smallest value of 'a' if 3a9 is divisible by 9.6

A field is in a form of rhombus having each side as 81 and altitude 25 m.what is the side of the square field which has the same area as that of the rhombus?

Which of the following is equal to (x+2)(x+3)?

The value of (x+2y)3 is _______.

The area of a circle with radius 28 cm is __________ square cm.

Price of oil increased by 10% so its sale was reduced by 5%. Find the efect on the income of the shopkeeper.

Which of the following ratio is greater than 5:11?

(i) In how many years will Rs. 950 produce Rs. 399 as simple interest at 7%? (ii) Find the time in which Rs. 1200 will amount to Rs. 1536 at 3.5% per year?

Aditya borrowed ₹ 30,000 from a bank to buy a Washing machine at a rate of 10% interest p.a. compounded yearly. What amount will he pay at the end of 2 years and 4 months to clear the loan?

In a class, 60% of the students are girls and there are 20 boys. What is the strength of the class?

Define commutative property of addition of integers with the help of an example. [2 MARKS]

Statement 1: Frequency of an observation gives number of occurrences of that particular observation. Statement 2: Frequency is represented on the y-axis of the bar graph.

Fill in the blanks: 62+72+ ___ =432 is

A man spent 25 % of his salary in the first week and 2623 % of the remainder in the second week and found that his overall expenditure was ₹180. Find his salary.

If S is the event that it will rain tomorrow and P(S) = 0.3. Find P(S').

7×10−30.07×10−1

ABCD is a rectangle, if ∠BPC=124∘ Calculate ∠BAP

__m is the base of a parallelogram so that the area is 136 m2 with a given height is 8m.

By selling a saree for₹ 3000 the shopkeeper made a profit of 20% what is the cp

The perimeter of a triangle is 6p2−4p+9 and two of its sides are p2−2p+1 and 3p2−5p+3. Find the third side of the triangle.

How is the interest calculated for savings account?

To find three rational number between 0 and3/4 and -5/11 and 0 wheather we have to multiply by 2 or not ? What is the step to solve this ?

The numerator of a rational number is greater than its denominator by 5. If the numerator is decreased by 8 and the denominator is increased by 7, the new number obtained is 3/5. Find the number.

(x/3)+4=2

In a 2 digit number,the sum of digits is 7. If the difference of 2 digit number and number obtained by reversing the digit 9, then find the number

If a = 0.1039, then the value of 3a−√4a2−4a+1 is

(25a3)÷(−5a)= _____

In an examination, the pass mark is 49 of the total marks. If Rajnish scores 45% out of a total of 810, by how much does he exceed the pass mark?

When a coin is tossed once what are the possible outcomes?

The surface area of a cube with length of side 18 cm is ___ cm2.

Question 16 Fill in the blanks to make each statement true: In a linear equation, the ................ power of the variable appearing in the equation is one.

The sum of two consecutive multiples of 13 is 117. One of these multiples is

Find the value of 87−114

Q73. Rohini correctly remembers that her Father’s birthday is before twenty fourth May but after Twentieth May, whereas his sister correctly remembers that their mother’s birthday is not on or after twenty Third May. On which day in May is definitely their mother’s birthday?

Factorise Completely : 16x4−81y4

The regular polygon whose exterior angle is 40∘ is a:

The tens digit in a two digit number is twice the units digit.If 18 is subtracted from the number,the digits are reversed.find the number.

A linear equation can be graphically represented as:

Which of the following expressions are polynomials? (i) x2+4 (ii) 4−x−1 (iii) 2x2−2x

The angle between the two tangents from the origin to the circle (x−7)2+(y+1)2=25 is

Find the values of A, B and C, when 4 6 A - C B 9 _______ 1 7 7

According to the question an unbiased dice is thrown and the probability of getting an even no. And a multiple of 3 is 1/6... But zero is also a even and a multiple of 3 (proof: 2-2 is 0 and 3*0 is 0 respectively)... So answer should be 2/6 ie. 1/3... Please clear my doubt. 😃

A man travelled 1/8 th of his journey by Bus ,1/4 th by a taxi and 3/5 th by a train and the remaining 8 KM on foot.What is the length of his total journey

Question 7(iv) Using a2−b2=(a+b)(a−b), find 12.12−7.92

Question 2(iv) Factorise the following expressions −16z+20z3

If one factor of x2 + 7x + 10 is (x + 2) then the other factor is: