25365 + Interview Questions in Mathematics

1.	Two consecutive natural numbers are such that one-fourth of the smaller exceeds one-fifth of the greater by 1. Find the numbers.
Answer» Two consecutive natural numbers are such that one-fourth of the smaller exceeds one-fifth of the greater by 1. Find the numbers.

Discussion

2.	The polygon formed in the front side of the figure is called a ___.
Answer» The polygon formed in the front side of the figure is called a ___.

2.

The polygon formed in the front side of the figure is called a ___.

Answer»

The polygon formed in the front side of the figure is called a ___.

Discussion

3.	22324252= ___
Answer» $\frac{\frac{2^{2}}{3^{2}}}{\frac{4^{2}}{5^{2}}} =$ ___

Discussion

4.	Express the following as a power with the base 4: 43×4−2×162
Answer» Express the following as a power with the base 4: $4^{3} \times 4^{- 2} \times 16^{2}$

Discussion

5.	What is the rational number denoted by point A in the given number line?
Answer» What is the rational number denoted by point A in the given number line?

5.

What is the rational number denoted by point A in the given number line?

Answer»

What is the rational number denoted by point A in the given number line?

Discussion

6.	A scooter was bought at ₹60000 and its value depreciated at the rate of 7% per annum. Find its value after one year.
Answer» A scooter was bought at ₹60000 and its value depreciated at the rate of 7% per annum. Find its value after one year.

Discussion

7.	A sum of ₹500 is in the form of 5-rupee and 10-rupee notes. If the total number of notes is 75, find the number of notes of each type.
Answer» A sum of ₹500 is in the form of 5-rupee and 10-rupee notes. If the total number of notes is 75, find the number of notes of each type.

Discussion

8.	What are the points of intersection of the line CD with x-axis and y-axis respectively?
Answer» What are the points of intersection of the line CD with x-axis and y-axis respectively?

8.

What are the points of intersection of the line CD with x-axis and y-axis respectively?

Answer»

What are the points of intersection of the line CD with x-axis and y-axis respectively?

Discussion

9.	There are ______ rational numbers whose absolute value is less than 5/7 .
Answer» There are ______ rational numbers whose absolute value is less than 5/7 .

Discussion

10.	The perimeter of a square is 36 cm; find its area.
Answer» The perimeter of a square is 36 cm; find its area.

Discussion

11.	A gold ring is purchased for Rs. 18,700 including VAT. Find the selling price of the ring. KINDLY GIVE THE ANSWER WITH DETAILED EXPLANATION
Answer» A gold ring is purchased for Rs. 18,700 including VAT. Find the selling price of the ring. KINDLY GIVE THE ANSWER WITH DETAILED EXPLANATION

11.

A gold ring is purchased for Rs. 18,700 including VAT. Find the selling price of the ring. KINDLY GIVE THE ANSWER WITH DETAILED EXPLANATION

Answer»

A gold ring is purchased for Rs. 18,700 including VAT. Find the selling price of the ring.

KINDLY GIVE THE ANSWER WITH DETAILED EXPLANATION

Discussion

12.	Solve the following question : 6(6x−5)−5(7x−8)=12(4−x)+1
Answer» Solve the following question : $6 (6 x - 5) - 5 (7 x - 8) = 12 (4 - x) + 1$

12.

Solve the following question : 6(6x−5)−5(7x−8)=12(4−x)+1

Answer»

Solve the following question :

$6 (6 x - 5) - 5 (7 x - 8) = 12 (4 - x) + 1$

Discussion

13.	Simplify: x−y−{x−y−(x+y)−¯¯¯¯¯¯¯¯¯¯¯¯¯x−y}
Answer» Simplify: $x - y - {x - y - (x + y) - ¯ ¯¯¯¯¯¯¯¯¯¯¯ ¯ x - y}$

13.

Simplify: x−y−{x−y−(x+y)−¯¯¯¯¯¯¯¯¯¯¯¯¯x−y}

Answer»

Simplify:

$x - y - {x - y - (x + y) - ¯ ¯¯¯¯¯¯¯¯¯¯¯ ¯ x - y}$

Discussion

14.	Mean of eight observation is 25 if one observation 11 is excluded, find the mean of the remaining
Answer» Mean of eight observation is 25 if one observation 11 is excluded, find the mean of the remaining

Discussion

15.	If the manufacturer gains 10%, the wholesale dealer gains 15% and the retailer gains 25%, then find the cost of production of a table if the retail price is ₹1265.
Answer» If the manufacturer gains $10 %$ , the wholesale dealer gains $15 %$ and the retailer gains $25 %$ , then find the cost of production of a table if the retail price is ₹1265.

Discussion

16.	Question 17 The age of the father is twice the sum of the ages of his two children. After 20 yr, his age will be equal to t he sum of the ages of his children find the age of the father.
Answer» Question 17 The age of the father is twice the sum of the ages of his two children. After 20 yr, his age will be equal to t he sum of the ages of his children find the age of the father.

Discussion

17.	Humans display bilateral symmetry. Which of the following organisms show a similar pattern of symmetry?
Answer» Humans display bilateral symmetry. Which of the following organisms show a similar pattern of symmetry?

Discussion

18.	Pipe A can fill a cistern In 6 hours and pipe B can 1111 it in 8 hours. Both the pipes are opened and after two hours, pipe A is closed. How much time will B take to fill the remaining part of the tank?
Answer» Pipe A can fill a cistern In 6 hours and pipe B can 1111 it in 8 hours. Both the pipes are opened and after two hours, pipe A is closed. How much time will B take to fill the remaining part of the tank?

Discussion

19.	Factorise: 100−(x−5)2
Answer» Factorise: $100 - (x - 5)^{2}$

Discussion

20.	Question 53(iii) The graph given below shows the marks obtained out of 10 by Sonia in two different tests. Study the graph and answer the questions that follow. In which subject did she score the least in Test II?
Answer» Question 53(iii) The graph given below shows the marks obtained out of 10 by Sonia in two different tests. Study the graph and answer the questions that follow. In which subject did she score the least in Test II?

Discussion

21.	Question 76 A solid has forty faces and sixty edges. Find the number of vertices of the solid.
Answer» Question 76 A solid has forty faces and sixty edges. Find the number of vertices of the solid.

Discussion

22.	Question 125(i) Find the multiplicative inverse of −118
Answer» Question 125(i) Find the multiplicative inverse of $- 1 \frac{1}{8}$

Discussion

23.	Question 71 In the following question, state whether the statement is True (T) or False (F): Common factors of 11pq2,121p2q3,1331p2q is 11p2q2.
Answer» Question 71 In the following question, state whether the statement is True (T) or False (F): Common factors of $11 p q^{2}, 121 p^{2} q^{3}, 1331 p^{2} q$ is $11 p^{2} q^{2} .$

23.

Question 71 In the following question, state whether the statement is True (T) or False (F): Common factors of 11pq2,121p2q3,1331p2q is 11p2q2.

Answer»

Question 71

In the following question, state whether the statement is True (T) or False (F):

Common factors of $11 p q^{2}, 121 p^{2} q^{3}, 1331 p^{2} q$ is $11 p^{2} q^{2} .$

Discussion

24.	How do we represent 13.¯¯¯¯¯¯56?
Answer» How do we represent $13. ¯ ¯¯¯¯ ¯ 56$ ?

Discussion

25.	Which of the following options are the same as 53.48?
Answer» Which of the following options are the same as $53.48$ ?

Discussion

26.	The price of 1kg of potato is Rs 60. 1 kg of onions costs 10% less than 1 kg potato. If I pay Rs 180 for potatoes, what will be the cost of onions of the weight same as the weight of the potatoes?
Answer» The price of 1kg of potato is Rs 60. 1 kg of onions costs 10% less than 1 kg potato. If I pay Rs 180 for potatoes, what will be the cost of onions of the weight same as the weight of the potatoes?

Discussion

27.	the radii of 2 cylinders are in the ratio 2:3 and their heights are in the ratio 5:3 . calculate the raio of their curved surface area
Answer» the radii of 2 cylinders are in the ratio 2:3 and their heights are in the ratio 5:3 . calculate the raio of their curved surface area

Discussion

28.	Exponent of the final value of 3−5×10−5×1255−7×6−5 is :
Answer» Exponent of the final value of $\frac{3^{- 5} \times 10^{- 5} \times 125}{5^{- 7} \times 6^{- 5}}$ is :

Discussion

29.	On dividing (24xy2)(z2) by 4xyz2, we get __________.
Answer» On dividing $(24 x y^{2}) (z^{2})$ by $4 x y z^{2}$ , we get __________.

Discussion

30.	Degree of the algebraic expression 2ab3 is ___.
Answer» Degree of the algebraic expression $2 a b^{3}$ is ___.

Discussion

31.	A can finish a work in 36 months, B in 18 months and C in 24 months. B and C start the work but are forced to leave after 4 months. The remaining work was done by A in:
Answer» A can finish a work in 36 months, B in 18 months and C in 24 months. B and C start the work but are forced to leave after 4 months. The remaining work was done by A in:

31.

A can finish a work in 36 months, B in 18 months and C in 24 months. B and C start the work but are forced to leave after 4 months. The remaining work was done by A in:

Answer»

A can finish a work in 36 months, B in 18 months and C in 24 months. B and C start the work but are forced to leave after 4 months. The remaining work was done by A in:

Discussion

32.	2x3+4x9 = ___
Answer» $\frac{2 x}{3} + \frac{4 x}{9}$ = ___

Discussion

33.	Reena goes to a shop to buy a radio costing Rs. 2,568. The rate of VAT is 7%. She tells the shopkeeper to reduce the price of the radio such that she has to pay Rs. 2,568 inclusive of VAT. Find the reduction needed in the price of radio.
Answer» Reena goes to a shop to buy a radio costing Rs. 2,568. The rate of VAT is $7 %$ . She tells the shopkeeper to reduce the price of the radio such that she has to pay Rs. 2,568 inclusive of VAT. Find the reduction needed in the price of radio.

Discussion

34.	The cost of a car purchased 2 years ago, depreciates at the rate of 30% every year. If its present worth is ₹ 415600, find its purchase price.
Answer» The cost of a car purchased 2 years ago, depreciates at the rate of $30 %$ every year. If its present worth is ₹ 415600, find its purchase price.

Discussion

35.	If the square of a number ends with 17 zeros, then its square will end with how many zeros?
Answer» If the square of a number ends with 17 zeros, then its square will end with how many zeros?

Discussion

36.	If the surface area and volume of a cylinder are numerically equal then its radius is:
Answer» If the surface area and volume of a cylinder are numerically equal then its radius is:

36.

If the surface area and volume of a cylinder are numerically equal then its radius is:

Answer»

If the surface area and volume of a cylinder are numerically equal then its radius is:

Discussion

37.	must be subtracted from 4x3−3x+5 to get 2x2−3x3+5x−2.
Answer» must be subtracted from $4 x^{3} - 3 x + 5$ to get $2 x^{2} - 3 x^{3} + 5 x - 2$ .

Discussion

38.	Factorise Completely : 625−x4
Answer» Factorise Completely : $625 - x^{4}$

Discussion

39.	Question 50 CP = MP - Discount
Answer» Question 50 CP = MP - Discount

39.

Question 50 CP = MP - Discount

Answer»

Question 50

CP = MP - Discount

Discussion

40.	Q59. A man invests Rs. 3,000 at the rate of 5% per annum. How much more should he invest at the rate of 8% so that he can earn a total of 6% per annum?
Answer» Q59. A man invests Rs. 3,000 at the rate of $5 %$ per annum. How much more should he invest at the rate of $8 %$ so that he can earn a total of $6 %$ per annum?

Discussion

41.	a2,b2,c2 are 3 consecutive perfect squares. How many natural numbers are lying in between a2 and c2, if a>0?
Answer» $a^{2}, b^{2}, c^{2}$ are 3 consecutive perfect squares. How many natural numbers are lying in between $a^{2} a n d c^{2}$ , if $a > 0$ ?

Discussion

42.	How wii I find probability of the experiment is done only one time
Answer» How wii I find probability of the experiment is done only one time

Discussion

43.	The following pie-chart shows how a Person's monthly salary is distributed over different expense heads Q25. For a person, whose monthly salary is Rs. 6,000, how many items are there on which he applies more than Rs.1,000 per month?
Answer» The following pie-chart shows how a Person's monthly salary is distributed over different expense heads Q25. For a person, whose monthly salary is Rs. 6,000, how many items are there on which he applies more than Rs.1,000 per month?

43.

The following pie-chart shows how a Person's monthly salary is distributed over different expense heads Q25. For a person, whose monthly salary is Rs. 6,000, how many items are there on which he applies more than Rs.1,000 per month?

Answer»

The following pie-chart shows how a Person's monthly salary is distributed over different expense heads

Q25. For a person, whose monthly salary is Rs. 6,000, how many items are there on which he applies more than Rs.1,000 per month?

Discussion

44.	If 4a+5b+9c=36 and 7a+9b+17c=66 then find the value of a+b+c
Answer» If 4a+5b+9c=36 and 7a+9b+17c=66 then find the value of a+b+c

Discussion

45.	A sum is divided between A and B in the ratio of 1:2. A purchased a car from his part, which depreciates 1007 % per annum and B deposited his amount in a bank, which pays him20% interest per annum compounded annually. By what percentage will the total sum of money increase after two years due to this investment pattern (approx)?
Answer» A sum is divided between A and B in the ratio of 1:2. A purchased a car from his part, which depreciates $\frac{100}{7}$ $%$ per annum and B deposited his amount in a bank, which pays him $20 %$ interest per annum compounded annually. By what percentage will the total sum of money increase after two years due to this investment pattern (approx)?

Discussion

46.	Question 15 Let ¯x be the mean of x1,x2,……xn, and ¯y be the mean of y1,y2,……yn. If ¯z represents the mean of x1,x2,……xn,y1,y2,……yn, then ¯z is equal to: A) ¯x+¯y B) ¯x+¯y2 C) ¯x+¯yn D) ¯x+¯y2n
Answer» Question 15 Let $¯ x$ be the mean of $x_{1}, x_{2}, \dots \dots x_{n}$ , and $¯ y$ be the mean of $y_{1}, y_{2}, \dots \dots y_{n}$ . If $¯ z$ represents the mean of $x_{1}, x_{2}, \dots \dots x_{n}, y_{1}, y_{2}, \dots \dots y_{n}$ , then $¯ z$ is equal to: A) $¯ x + ¯ y$ B) $\frac{¯ x + ¯ y}{2}$ C) $\frac{¯ x + ¯ y}{n}$ D) $\frac{¯ x + ¯ y}{2 n}$

Discussion

47.	Find the greatest rational number among the given options.
Answer» Find the greatest rational number among the given options.

Discussion

48.	Calculate the amount on Rs 7500 in 3 years and at 6% compounded annually.
Answer» Calculate the amount on Rs 7500 in 3 years and at 6% compounded annually.

Discussion

49.	What is the value of 3 1
Answer» What is the value of 3 ¹

Discussion

50.	If a+1a=3;find=a2+1a2
Answer» If $a + \frac{1}{a} = 3; f i n d = a^{2} + \frac{1}{a^{2}}$

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Two consecutive natural numbers are such that one-fourth of the smaller exceeds one-fifth of the greater by 1. Find the numbers.

The polygon formed in the front side of the figure is called a ___.

22324252= ___

Express the following as a power with the base 4: 43×4−2×162

What is the rational number denoted by point A in the given number line?

A scooter was bought at ₹60000 and its value depreciated at the rate of 7% per annum. Find its value after one year.

A sum of ₹500 is in the form of 5-rupee and 10-rupee notes. If the total number of notes is 75, find the number of notes of each type.

What are the points of intersection of the line CD with x-axis and y-axis respectively?

There are ______ rational numbers whose absolute value is less than 5/7 .

The perimeter of a square is 36 cm; find its area.

A gold ring is purchased for Rs. 18,700 including VAT. Find the selling price of the ring. KINDLY GIVE THE ANSWER WITH DETAILED EXPLANATION

Solve the following question : 6(6x−5)−5(7x−8)=12(4−x)+1

Simplify: x−y−{x−y−(x+y)−¯¯¯¯¯¯¯¯¯¯¯¯¯x−y}

Mean of eight observation is 25 if one observation 11 is excluded, find the mean of the remaining

If the manufacturer gains 10%, the wholesale dealer gains 15% and the retailer gains 25%, then find the cost of production of a table if the retail price is ₹1265.

Question 17 The age of the father is twice the sum of the ages of his two children. After 20 yr, his age will be equal to t he sum of the ages of his children find the age of the father.

Humans display bilateral symmetry. Which of the following organisms show a similar pattern of symmetry?

Pipe A can fill a cistern In 6 hours and pipe B can 1111 it in 8 hours. Both the pipes are opened and after two hours, pipe A is closed. How much time will B take to fill the remaining part of the tank?

Factorise: 100−(x−5)2

Question 53(iii) The graph given below shows the marks obtained out of 10 by Sonia in two different tests. Study the graph and answer the questions that follow. In which subject did she score the least in Test II?

Question 76 A solid has forty faces and sixty edges. Find the number of vertices of the solid.

Question 125(i) Find the multiplicative inverse of −118

Question 71 In the following question, state whether the statement is True (T) or False (F): Common factors of 11pq2,121p2q3,1331p2q is 11p2q2.

How do we represent 13.¯¯¯¯¯¯56?

Which of the following options are the same as 53.48?

The price of 1kg of potato is Rs 60. 1 kg of onions costs 10% less than 1 kg potato. If I pay Rs 180 for potatoes, what will be the cost of onions of the weight same as the weight of the potatoes?

the radii of 2 cylinders are in the ratio 2:3 and their heights are in the ratio 5:3 . calculate the raio of their curved surface area

Exponent of the final value of 3−5×10−5×1255−7×6−5 is :

On dividing (24xy2)(z2) by 4xyz2, we get __________.

Degree of the algebraic expression 2ab3 is ___.

A can finish a work in 36 months, B in 18 months and C in 24 months. B and C start the work but are forced to leave after 4 months. The remaining work was done by A in:

2x3+4x9 = ___

Reena goes to a shop to buy a radio costing Rs. 2,568. The rate of VAT is 7%. She tells the shopkeeper to reduce the price of the radio such that she has to pay Rs. 2,568 inclusive of VAT. Find the reduction needed in the price of radio.

The cost of a car purchased 2 years ago, depreciates at the rate of 30% every year. If its present worth is ₹ 415600, find its purchase price.

If the square of a number ends with 17 zeros, then its square will end with how many zeros?

If the surface area and volume of a cylinder are numerically equal then its radius is:

must be subtracted from 4x3−3x+5 to get 2x2−3x3+5x−2.

Factorise Completely : 625−x4

Question 50 CP = MP - Discount

Q59. A man invests Rs. 3,000 at the rate of 5% per annum. How much more should he invest at the rate of 8% so that he can earn a total of 6% per annum?

a2,b2,c2 are 3 consecutive perfect squares. How many natural numbers are lying in between a2 and c2, if a&gt;0?

How wii I find probability of the experiment is done only one time

The following pie-chart shows how a Person's monthly salary is distributed over different expense heads Q25. For a person, whose monthly salary is Rs. 6,000, how many items are there on which he applies more than Rs.1,000 per month?

If 4a+5b+9c=36 and 7a+9b+17c=66 then find the value of a+b+c

Question 15 Let ¯x be the mean of x1,x2,……xn, and ¯y be the mean of y1,y2,……yn. If ¯z represents the mean of x1,x2,……xn,y1,y2,……yn, then ¯z is equal to: A) ¯x+¯y B) ¯x+¯y2 C) ¯x+¯yn D) ¯x+¯y2n

Find the greatest rational number among the given options.

Calculate the amount on Rs 7500 in 3 years and at 6% compounded annually.

What is the value of 3 1

If a+1a=3;find=a2+1a2

a2,b2,c2 are 3 consecutive perfect squares. How many natural numbers are lying in between a2 and c2, if a>0?