25365 + Interview Questions in Mathematics

1.	A solid cylinder has a total surface area of 231cm2. Its curved surface area is 23 of the total surface area. Find the volume of the cylinder.
Answer» A solid cylinder has a total surface area of $231 c m^{2}$ . Its curved surface area is $\frac{2}{3}$ of the total surface area. Find the volume of the cylinder.

Discussion

2.	If the cost of 93 m of a certain kind of plastic sheet is Rs. 1395, then what would it cost to buy 105 m of such plastic sheet.
Answer» If the cost of 93 m of a certain kind of plastic sheet is Rs. 1395, then what would it cost to buy 105 m of such plastic sheet.

Discussion

3.	If a fridge was bought one year ago and due to usage, it lost its value by 5%.Its present value is Rs.7600.At what price it was bought initially?
Answer» If a fridge was bought one year ago and due to usage, it lost its value by 5%.Its present value is Rs.7600.At what price it was bought initially?

Discussion

4.	Factorise: 49a2+84ab+36b2
Answer» Factorise: $49 a^{2} + 84 a b + 36 b^{2}$

Discussion

5.	Given f(x) = 4x - 6. Find the value of f(3)
Answer» Given f(x) = 4x - 6. Find the value of f(3)

Discussion

6.	What is meant of irreducible?
Answer» What is meant of irreducible?

Discussion

7.	good morning mam/sir if we can find monthly salary by the amount or %age saved . so in this way why we cannot find the salary by the given money which is spended by his or her thanks Siddhika
Answer» good morning mam/sir if we can find monthly salary by the amount or %age saved . so in this way why we cannot find the salary by the given money which is spended by his or her thanks Siddhika

Discussion

8.	A cone of height 36 cm and base radius 9 cm is reshaped into a sphere. Find the radius of the sphere formed.
Answer» A cone of height 36 cm and base radius 9 cm is reshaped into a sphere. Find the radius of the sphere formed.

Discussion

9.	Question 79 (i) If 25 meters of cloth costs Rs. 337.50, then What will be the cost of 40 metres of the same type of cloth?
Answer» Question 79 (i) If 25 meters of cloth costs Rs. 337.50, then What will be the cost of 40 metres of the same type of cloth?

9.

Question 79 (i) If 25 meters of cloth costs Rs. 337.50, then What will be the cost of 40 metres of the same type of cloth?

Answer»

Question 79 (i)

If 25 meters of cloth costs Rs. 337.50, then
What will be the cost of 40 metres of the same type of cloth?

Discussion

10.	Question 42 State whether the following statement is True or False. The other name of cuboid is tetrahedron.
Answer» Question 42 State whether the following statement is True or False. The other name of cuboid is tetrahedron.

Discussion

11.	A railway fare for 61km is rupees 183 .Find the fare for 53 km
Answer» A railway fare for 61km is rupees 183 .Find the fare for 53 km

Discussion

12.	_______ is the central tendency of a group of observation or data.
Answer» _______ is the central tendency of a group of observation or data.

Discussion

13.	A rational between 7/8 and 9/8 is :-
Answer» A rational between 7/8 and 9/8 is :-

Discussion

14.	Find the value of P in the following addition 3 1 P +1 P 3 ______ 5 0 1
Answer» Find the value of P in the following addition 3 1 P +1 P 3 ______ 5 0 1

14.

Find the value of P in the following addition 3 1 P +1 P 3 ______ 5 0 1

Answer»

Find the value of P in the following addition

3 1 P

+1 P 3

______

5 0 1

Discussion

15.	A man invests a sum of money in Rs.100 shares, paying 15% dividend quoted at 20% premium. If his annual dividend is Rs.540, calculate the rate of return on his investment?
Answer» A man invests a sum of money in Rs.100 shares, paying 15% dividend quoted at 20% premium. If his annual dividend is Rs.540, calculate the rate of return on his investment?

Discussion

16.	If 81y=93y, find y.
Answer» If $81^{y} = \frac{9}{3^{y}}$ , find y.

Discussion

17.	Draw a frequency curve for the following distribution. Class-interval0−1010−2020−3030−4040−5050−60Frequency41015182016
Answer» Draw a frequency curve for the following distribution. $\begin{matrix} Class-interval & 0 - 10 & 10 - 20 & 20 - 30 & 30 - 40 & 40 - 50 & 50 - 60 Frequency & 4 & 10 & 15 & 18 & 20 & 16 \end{matrix}$

17.

Draw a frequency curve for the following distribution. Class-interval0−1010−2020−3030−4040−5050−60Frequency41015182016

Answer»

Draw a frequency curve for the following distribution.

$\begin{matrix} Class-interval & 0 - 10 & 10 - 20 & 20 - 30 & 30 - 40 & 40 - 50 & 50 - 60 Frequency & 4 & 10 & 15 & 18 & 20 & 16 \end{matrix}$

Discussion

18.	The area of an isosceles trapezium is 34cm2 and the length of one of the parallel sides is 10 cm and Its height is 4 cm. Find the length of the other parallel side.
Answer» The area of an isosceles trapezium is $34 c m^{2}$ and the length of one of the parallel sides is 10 cm and Its height is 4 cm. Find the length of the other parallel side.

Discussion

19.	[(−8)×(−3)]×(−4)] is not equal to
Answer» $[(- 8) \times (- 3)] \times (- 4)]$ is not equal to

Discussion

20.	A farmer has enough food to feed his 18 cows for a week. If after 2 days, he bought 2 more cows, then how long will the food last?
Answer» A farmer has enough food to feed his 18 cows for a week. If after 2 days, he bought 2 more cows, then how long will the food last?

Discussion

21.	Which numerals do not come in unit place of perfect squares?
Answer» Which numerals do not come in unit place of perfect squares?

Discussion

22.	Check if 6^n can end with the digit 0 for any natural number n.
Answer» Check if 6^n can end with the digit 0 for any natural number n.

Discussion

23.	The exponential form of √√2×√3 is
Answer» The exponential form of $\sqrt{\sqrt{2} \times \sqrt{3}}$ is

Discussion

24.	Nine numbers are taken forming a square as shown in figure. Find the difference between the of sum of squares of the diagonal numbers.
Answer» Nine numbers are taken forming a square as shown in figure. Find the difference between the of sum of squares of the diagonal numbers.

24.

Nine numbers are taken forming a square as shown in figure. Find the difference between the of sum of squares of the diagonal numbers.

Answer»

Nine numbers are taken forming a square as shown in figure.

Find the difference between the of sum of squares of the diagonal numbers.

Discussion

25.	From the graph, what is the value of the dependent variable when the value of independent variable is 350?
Answer» From the graph, what is the value of the dependent variable when the value of independent variable is 350?

Discussion

26.	6(3x + 2) - 5(6x - 1) = 6(x - 3) - 5(7x - 6) + 12x
Answer» 6(3x + 2) - 5(6x - 1) = 6(x - 3) - 5(7x - 6) + 12x

Discussion

27.	If 783842___ is divisible by 10, fill the blank with most suitable digit.
Answer» If 783842___ is divisible by 10, fill the blank with most suitable digit.

Discussion

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

28.

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

Answer»

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

Discussion

29.	If xy and yx are rational numbers, then which of the following options is correct?
Answer» If $\frac{x}{y}$ and $\frac{y}{x}$ are rational numbers, then which of the following options is correct?

Discussion

30.	The cost of one food packet is ₹ 45 with a fixed delivery charge of ₹10 . The total cost for y number of food packets is given by : a) 45 + 10y b) 45 + 10 + y c) 45y + 10 d) 45 - 10y
Answer» The cost of one food packet is ₹ 45 with a fixed delivery charge of ₹10 . The total cost for y number of food packets is given by : a) 45 + 10y b) 45 + 10 + y c) 45y + 10 d) 45 - 10y

30.

The cost of one food packet is ₹ 45 with a fixed delivery charge of ₹10 . The total cost for y number of food packets is given by : a) 45 + 10y b) 45 + 10 + y c) 45y + 10 d) 45 - 10y

Answer»

The cost of one food packet is ₹ 45 with a fixed delivery charge of ₹10 . The total cost for y number of food packets is given by :

a) 45 + 10y

b) 45 + 10 + y

c) 45y + 10

d) 45 - 10y

Discussion

31.	Simplify the following expression 7(4a-3)-3a{8-2a(1+2a)}
Answer» Simplify the following expression 7(4a-3)-3a{8-2a(1+2a)}

31.

Simplify the following expression 7(4a-3)-3a{8-2a(1+2a)}

Answer»

Simplify the following expression

7(4a-3)-3a{8-2a(1+2a)}

Discussion

32.	Two adjacent sides of a parallelogram is 12 and 8 cm. If the length of the altitude corresponding to the side 12 cm is 6 cm find the length of the altitude corresponding the other pair of the side
Answer» Two adjacent sides of a parallelogram is 12 and 8 cm. If the length of the altitude corresponding to the side 12 cm is 6 cm find the length of the altitude corresponding the other pair of the side

Discussion

33.	Question 1 (iv) Find the square roots of each of the following numbers by Division method: 529
Answer» Question 1 (iv) Find the square roots of each of the following numbers by Division method: 529

33.

Question 1 (iv) Find the square roots of each of the following numbers by Division method: 529

Answer»

Question 1 (iv)
Find the square roots of each of the following numbers by Division method:

529

Discussion

34.	236^-1
Answer» 236^-1

Discussion

35.	Not questions. I can't understand the whole concept.
Answer» Not questions. I can't understand the whole concept.

Discussion

36.	In the given figure, four rhombuses are built around a square of side 2 cm. What additional information do you require to construct this figure?
Answer» In the given figure, four rhombuses are built around a square of side 2 cm. What additional information do you require to construct this figure?

36.

In the given figure, four rhombuses are built around a square of side 2 cm. What additional information do you require to construct this figure?

Answer»

In the given figure, four rhombuses are built around a square of side 2 cm.

What additional information do you require to construct this figure?

Discussion

37.	For representing the multiplicative inverse of 5/7 on the number line, one unit should be divided in how many parts?
Answer» For representing the multiplicative inverse of 5/7 on the number line, one unit should be divided in how many parts?

Discussion

38.	The 3 cubes of edge 3 cm are kept together to form a cuboids then the dimension of cuboids are:
Answer» The 3 cubes of edge 3 cm are kept together to form a cuboids then the dimension of cuboids are:

38.

The 3 cubes of edge 3 cm are kept together to form a cuboids then the dimension of cuboids are:

Answer»

The 3 cubes of edge 3 cm are kept together to form a cuboids then the dimension of cuboids are:

Discussion

39.	Two numbers are in the ratio 1:4. If 5 is added to both the numbers, the quotient obtained by dividing the larger number by the smaller number is 3. Find the numbers.
Answer» Two numbers are in the ratio 1:4. If 5 is added to both the numbers, the quotient obtained by dividing the larger number by the smaller number is 3. Find the numbers.

Discussion

40.	Factorise : (2a+b)2+5(2a+b)+6
Answer» Factorise : $(2 a + b)^{2} + 5 (2 a + b) + 6$

Discussion

41.	What is decimal number
Answer» What is decimal number

Discussion

42.	There is 60% increase in an amount in 6 years at simple interest rate. What will be the compound interest of ₹12,000 after 3 years at the same rate?
Answer» There is 60% increase in an amount in 6 years at simple interest rate. What will be the compound interest of ₹12,000 after 3 years at the same rate?

Discussion

43.	(30)−24 =
Answer» $(30)^{- 24}$ =

Discussion

44.	10lm is one of the factors of 20l2m+30alm. The other factor is
Answer» $10 l m$ is one of the factors of $20 l^{2} m + 30 a l m$ . The other factor is

Discussion

45.	3√135625,explain the answer with all process
Answer» ³√135625,explain the answer with all process

Discussion

46.	A sum of Rs. 9830 was lent on 14th January and it amounted to Rs. 10075.75 on 9th June of the same year. At what rate % p.a the money was lent if the year may not be a leap year.
Answer» A sum of Rs. 9830 was lent on 14th January and it amounted to Rs. 10075.75 on 9th June of the same year. At what rate $%$ p.a the money was lent if the year may not be a leap year.

Discussion

47.	What is the smallest number that has to be multiplied to 39200 to make it a perfect cube?
Answer» What is the smallest number that has to be multiplied to 39200 to make it a perfect cube?

Discussion

48.	Question 83 (xx) Multiply the following: (x2−5x+6),(2x+7)
Answer» Question 83 (xx) Multiply the following: $(x^{2} - 5 x + 6), (2 x + 7)$

48.

Question 83 (xx) Multiply the following: (x2−5x+6),(2x+7)

Answer»

Question 83 (xx)

Multiply the following:

$(x^{2} - 5 x + 6), (2 x + 7)$

Discussion

49.	Ted with his friend Ned, was watching Mission Impossible. It was the climax scene, Ethan jumping from an aeroplane during the night. With the help of his gadgets, he got a blueprint of a parallelogram-shaped land he was about to land on and its measurements. Find the area of the place he can land to cheat death one more time by not falling in the rectangular killer swamp!
Answer» Ted with his friend Ned, was watching Mission Impossible. It was the climax scene, Ethan jumping from an aeroplane during the night. With the help of his gadgets, he got a blueprint of a parallelogram-shaped land he was about to land on and its measurements. Find the area of the place he can land to cheat death one more time by not falling in the rectangular killer swamp!

49.

Ted with his friend Ned, was watching Mission Impossible. It was the climax scene, Ethan jumping from an aeroplane during the night. With the help of his gadgets, he got a blueprint of a parallelogram-shaped land he was about to land on and its measurements. Find the area of the place he can land to cheat death one more time by not falling in the rectangular killer swamp!

Answer»

Ted with his friend Ned, was watching Mission Impossible. It was the climax scene, Ethan jumping from an aeroplane during the night. With the help of his gadgets, he got a blueprint of a parallelogram-shaped land he was about to land on and its measurements. Find the area of the place he can land to cheat death one more time by not falling in the rectangular killer swamp!

Discussion

50.	Factorise: a3+a−3a2−3
Answer» Factorise: $a^{3} + a - 3 a^{2} - 3$

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

A solid cylinder has a total surface area of 231cm2. Its curved surface area is 23 of the total surface area. Find the volume of the cylinder.

If the cost of 93 m of a certain kind of plastic sheet is Rs. 1395, then what would it cost to buy 105 m of such plastic sheet.

If a fridge was bought one year ago and due to usage, it lost its value by 5%.Its present value is Rs.7600.At what price it was bought initially?

Factorise: 49a2+84ab+36b2

Given f(x) = 4x - 6. Find the value of f(3)

What is meant of irreducible?

good morning mam/sir if we can find monthly salary by the amount or %age saved . so in this way why we cannot find the salary by the given money which is spended by his or her thanks Siddhika

A cone of height 36 cm and base radius 9 cm is reshaped into a sphere. Find the radius of the sphere formed.

Question 79 (i) If 25 meters of cloth costs Rs. 337.50, then What will be the cost of 40 metres of the same type of cloth?

Question 42 State whether the following statement is True or False. The other name of cuboid is tetrahedron.

A railway fare for 61km is rupees 183 .Find the fare for 53 km

_______ is the central tendency of a group of observation or data.

A rational between 7/8 and 9/8 is :-

Find the value of P in the following addition 3 1 P +1 P 3 ______ 5 0 1

A man invests a sum of money in Rs.100 shares, paying 15% dividend quoted at 20% premium. If his annual dividend is Rs.540, calculate the rate of return on his investment?

If 81y=93y, find y.

Draw a frequency curve for the following distribution. Class-interval0−1010−2020−3030−4040−5050−60Frequency41015182016

The area of an isosceles trapezium is 34cm2 and the length of one of the parallel sides is 10 cm and Its height is 4 cm. Find the length of the other parallel side.

[(−8)×(−3)]×(−4)] is not equal to

A farmer has enough food to feed his 18 cows for a week. If after 2 days, he bought 2 more cows, then how long will the food last?

Which numerals do not come in unit place of perfect squares?

Check if 6^n can end with the digit 0 for any natural number n.

The exponential form of √√2×√3 is

Nine numbers are taken forming a square as shown in figure. Find the difference between the of sum of squares of the diagonal numbers.

From the graph, what is the value of the dependent variable when the value of independent variable is 350?

6(3x + 2) - 5(6x - 1) = 6(x - 3) - 5(7x - 6) + 12x

If 783842___ is divisible by 10, fill the blank with most suitable digit.

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

If xy and yx are rational numbers, then which of the following options is correct?

The cost of one food packet is ₹ 45 with a fixed delivery charge of ₹10 . The total cost for y number of food packets is given by : a) 45 + 10y b) 45 + 10 + y c) 45y + 10 d) 45 - 10y

Simplify the following expression 7(4a-3)-3a{8-2a(1+2a)}

Two adjacent sides of a parallelogram is 12 and 8 cm. If the length of the altitude corresponding to the side 12 cm is 6 cm find the length of the altitude corresponding the other pair of the side

Question 1 (iv) Find the square roots of each of the following numbers by Division method: 529

236^-1

Not questions. I can't understand the whole concept.

In the given figure, four rhombuses are built around a square of side 2 cm. What additional information do you require to construct this figure?

For representing the multiplicative inverse of 5/7 on the number line, one unit should be divided in how many parts?

The 3 cubes of edge 3 cm are kept together to form a cuboids then the dimension of cuboids are:

Two numbers are in the ratio 1:4. If 5 is added to both the numbers, the quotient obtained by dividing the larger number by the smaller number is 3. Find the numbers.

Factorise : (2a+b)2+5(2a+b)+6

What is decimal number

There is 60% increase in an amount in 6 years at simple interest rate. What will be the compound interest of ₹12,000 after 3 years at the same rate?

(30)−24 =

10lm is one of the factors of 20l2m+30alm. The other factor is

3√135625,explain the answer with all process

A sum of Rs. 9830 was lent on 14th January and it amounted to Rs. 10075.75 on 9th June of the same year. At what rate % p.a the money was lent if the year may not be a leap year.

What is the smallest number that has to be multiplied to 39200 to make it a perfect cube?

Question 83 (xx) Multiply the following: (x2−5x+6),(2x+7)

Factorise: a3+a−3a2−3