25365 + Interview Questions in Mathematics

1.	Given A=B2+√9c, then C is equal to
Answer» Given $A = B^{2} + \sqrt{\frac{9}{c}}$ , then C is equal to

Discussion

2.	The area of a parallelogram whose base is 4 cm and the height is 5 cm is
Answer» The area of a parallelogram whose base is 4 cm and the height is 5 cm is

Discussion

3.	Find the HCF of xy and y2.
Answer» Find the HCF of xy and $y^{2}$ .

Discussion

4.	The height of the rectangle in a histogram is proportional to __________.
Answer» The height of the rectangle in a histogram is proportional to __________.

Discussion

5.	Question 2 (v) Consider the following parallelograms. Find the values of the unknowns x,y,z (v)
Answer» Question 2 (v) Consider the following parallelograms. Find the values of the unknowns x,y,z (v)

Discussion

6.	Use suitable identities and find (51)2 - (49)2
Answer» Use suitable identities and find (51)² - (49)²

6.

Use suitable identities and find (51)2 - (49)2

Answer»

Use suitable identities and find

(51)² - (49)²

Discussion

7.	Write in the usual form: 100×a+10×c+b
Answer» Write in the usual form: $100 \times a + 10 \times c + b$

Discussion

8.	Which of the following regions represents 3x?
Answer» Which of the following regions represents 3x?

Discussion

9.	Ankush prepared a poster in the form of a parallelogram, as in the figure. (i) If ∠A=(5x+7)∘ and ∠B=(3x−3)∘, find all the angles of parallelogram ABCD. (ii) Which mathematical concept is used in this question? (iii) By writing a slogan on the poster, which value is depicted by Ankush? [4 MARKS]
Answer» Ankush prepared a poster in the form of a parallelogram, as in the figure. (i) If $∠ A = (5 x + 7)^{\circ}$ and $∠ B = (3 x - 3)^{\circ}$ , find all the angles of parallelogram ABCD. (ii) Which mathematical concept is used in this question? (iii) By writing a slogan on the poster, which value is depicted by Ankush? [4 MARKS]

Discussion

10.	(2x+1)(2x−1)=______
Answer» $(2 x + 1) (2 x - 1) =$ ______

Discussion

11.	What is the coefficient of x3 in (x−3)(x+2)2 ?
Answer» What is the coefficient of $x^{3}$ in $(x - 3) (x + 2)^{2}$ ?

Discussion

12.	From the following information, calculate the amount of subscription to be credited to Income and Expenditure Account for the year 2017-18. Subscription received during the year Rs 1,60,000 Subscription outstanding as at 31-03-2017 Rs 50,000 Subscription outstanding as at 31-03-2018 Rs 12,000 Subscription received in advance on 31-03-2017 Rs 30,000 Subscription received in advance on 31-03-2018 Rs 20,000 Subscription of Rs 5,000 are still in arrears for the year ended on 31-03-2017.
Answer» From the following information, calculate the amount of subscription to be credited to Income and Expenditure Account for the year 2017-18. Subscription received during the year Rs 1,60,000 Subscription outstanding as at 31-03-2017 Rs 50,000 Subscription outstanding as at 31-03-2018 Rs 12,000 Subscription received in advance on 31-03-2017 Rs 30,000 Subscription received in advance on 31-03-2018 Rs 20,000 Subscription of Rs 5,000 are still in arrears for the year ended on 31-03-2017.

12.

From the following information, calculate the amount of subscription to be credited to Income and Expenditure Account for the year 2017-18. Subscription received during the year Rs 1,60,000 Subscription outstanding as at 31-03-2017 Rs 50,000 Subscription outstanding as at 31-03-2018 Rs 12,000 Subscription received in advance on 31-03-2017 Rs 30,000 Subscription received in advance on 31-03-2018 Rs 20,000 Subscription of Rs 5,000 are still in arrears for the year ended on 31-03-2017.

Answer»

From the following information, calculate the amount of subscription to be credited to Income and Expenditure Account for the year 2017-18.

Subscription received during the year Rs 1,60,000

Subscription outstanding as at 31-03-2017 Rs 50,000

Subscription outstanding as at 31-03-2018 Rs 12,000

Subscription received in advance on 31-03-2017 Rs 30,000

Subscription received in advance on 31-03-2018 Rs 20,000

Subscription of Rs 5,000 are still in arrears for the year ended on 31-03-2017.

Discussion

13.	−145×257×−313 is equal to .
Answer» −145×257×−313 is equal to .

Discussion

14.	Arrange the heights of 20 students in a grouped distribution table with a class interval of 5. The number of students whose height is below 165cm is ___ Heights (in cm): 150, 153, 162, 170, 186, 153, 162, 180, 165, 150, 178, 156, 184, 176, 173, 186, 159, 183, 180, 156.
Answer» Arrange the heights of 20 students in a grouped distribution table with a class interval of 5. The number of students whose height is below 165cm is ___ Heights (in cm): 150, 153, 162, 170, 186, 153, 162, 180, 165, 150, 178, 156, 184, 176, 173, 186, 159, 183, 180, 156.

14.

Arrange the heights of 20 students in a grouped distribution table with a class interval of 5. The number of students whose height is below 165cm is ___ Heights (in cm): 150, 153, 162, 170, 186, 153, 162, 180, 165, 150, 178, 156, 184, 176, 173, 186, 159, 183, 180, 156.

Answer»

Arrange the heights of 20 students in a grouped distribution table with a class interval of 5. The number of students whose height is below 165cm is ___

Heights (in cm): 150, 153, 162, 170, 186, 153, 162, 180, 165, 150, 178, 156, 184, 176, 173, 186, 159, 183, 180, 156.

Discussion

15.	ABCD is a parallelogram and EFGB is a rhombus. AB = 7cm; AD = 4cm. If E is the mid-point of BC, find the perimeter of the whole figure i.e., ABGFECDA.
Answer» ABCD is a parallelogram and EFGB is a rhombus. AB = 7cm; AD = 4cm. If E is the mid-point of BC, find the perimeter of the whole figure i.e., ABGFECDA.

15.

ABCD is a parallelogram and EFGB is a rhombus. AB = 7cm; AD = 4cm. If E is the mid-point of BC, find the perimeter of the whole figure i.e., ABGFECDA.

Answer»

ABCD is a parallelogram and EFGB is a rhombus. AB = 7cm; AD = 4cm. If E is the mid-point of BC, find the perimeter of the whole figure i.e., ABGFECDA.

Discussion

16.	Find the cube root of -2.744 [4 MARKS]
Answer» Find the cube root of -2.744 [4 MARKS]

Discussion

17.	Find the value of: 17+(67+1)+(42+13)+1137
Answer» $Find the value of: \frac{1}{7} + (\frac{6}{7} + 1) + (\frac{4}{2} + \frac{1}{3}) + \frac{11}{3}$ 7

Discussion

18.	The volume of a closed cubical tank is 1331 cubic metre. Find the length of the side of the cubical tank
Answer» The volume of a closed cubical tank is 1331 cubic metre. Find the length of the side of the cubical tank

Discussion

19.	A square shaped garden with an area of 64 cm2 has to be fenced across the boundary. Find the total cost of fencing if the rate of fencing is Rs 2 per metre.
Answer» A square shaped garden with an area of 64 $c m^{2}$ has to be fenced across the boundary. Find the total cost of fencing if the rate of fencing is Rs 2 per metre.

Discussion

20.	If the square root of 10 is 3.16, then find the square root of 40. [2 MARKS]
Answer» If the square root of 10 is 3.16, then find the square root of 40. [2 MARKS]

Discussion

21.	ABC is a right angled triangle. Find the length of AB. Given that BC = 12 units; AC = 13 units.
Answer» ABC is a right angled triangle. Find the length of AB. Given that BC = 12 units; AC = 13 units.

21.

ABC is a right angled triangle. Find the length of AB. Given that BC = 12 units; AC = 13 units.

Answer»

ABC is a right angled triangle. Find the length of AB.

Given that BC = 12 units; AC = 13 units.

Discussion

22.	If half a number when added to the same number gives 120, then find the number.
Answer» If half a number when added to the same number gives 120, then find the number.

Discussion

23.	What is the mean of the following numbers: 2, 6, 4, 9, 7, 3, 5, 4, 3, 7.
Answer» What is the mean of the following numbers: 2, 6, 4, 9, 7, 3, 5, 4, 3, 7.

Discussion

24.	If the ratio of angles in a triangle is 3:4:5 then find the measures of angles in the triangle.
Answer» If the ratio of angles in a triangle is 3:4:5 then find the measures of angles in the triangle.

Discussion

25.	In a school, all students play either football or cricket or both. If 250 play football, 300 play cricket and 120 play both the games, then the number of students who play cricket only are ___.
Answer» In a school, all students play either football or cricket or both. If 250 play football, 300 play cricket and 120 play both the games, then the number of students who play cricket only are ___.

Discussion

26.	If we have measurements of 2 adjacent sides and minimum of __ angles, we can construct a unique quadrilateral.
Answer» If we have measurements of 2 adjacent sides and minimum of __ angles, we can construct a unique quadrilateral.

Discussion

27.	Five cubes of side 4 cm are joined together side by side to form a cuboid, find the total surface area of the resultant cuboid.
Answer» Five cubes of side 4 cm are joined together side by side to form a cuboid, find the total surface area of the resultant cuboid.

Discussion

28.	Find the area of the given quadrilateral ABCD, given that the length of BD, AE and BC are 28 cm, 12 cm, and 8 cm respectively and AE and BC are perpendiculars from vertices A and C respectively.
Answer» Find the area of the given quadrilateral ABCD, given that the length of BD, AE and BC are 28 cm, 12 cm, and 8 cm respectively and AE and BC are perpendiculars from vertices A and C respectively.

Discussion

29.	There are 3 consequetine single digit positive Numbers that add upto 24. Find the numbers.
Answer» There are 3 consequetine single digit positive Numbers that add upto 24. Find the numbers.

Discussion

30.	When opposite sides are equal and all angles are right angles, then the quadrilateral formed is known as ______ .
Answer» When opposite sides are equal and all angles are right angles, then the quadrilateral formed is known as ______ .

Discussion

31.	Find the area of quadrilateral ABCD in sq.units. Given AE = 5 units, BD =16 units and CF = 4 units.
Answer» Find the area of quadrilateral ABCD in sq.units. Given AE = 5 units, BD =16 units and CF = 4 units.

31.

Find the area of quadrilateral ABCD in sq.units. Given AE = 5 units, BD =16 units and CF = 4 units.

Answer»

Find the area of quadrilateral ABCD in sq.units. Given AE = 5 units, BD =16 units and CF = 4 units.

Discussion

32.	The area of the colored region in the figure will be = (Area of X) (Y) (Area of Z). Identify X, Y and Z.
Answer» The area of the colored region in the figure will be = (Area of X) (Y) (Area of Z). Identify X, Y and Z.

32.

The area of the colored region in the figure will be = (Area of X) (Y) (Area of Z). Identify X, Y and Z.

Answer»

The area of the colored region in the figure will be = (Area of X) (Y) (Area of Z). Identify X, Y and Z.

Discussion

33.	A cylindrical tube open at both ends is made of metal. The internal diameter of the tube is 11.2 cm and its length is 21 cm .The metal everywhere is 0.4 cm thick. The volume of the metal used is
Answer» A cylindrical tube open at both ends is made of metal. The internal diameter of the tube is 11.2 cm and its length is 21 cm .The metal everywhere is 0.4 cm thick. The volume of the metal used is

Discussion

34.	Coefficient of xy2 in the term −4xy29 is:
Answer» Coefficient of $x y^{2}$ in the term $\frac{- 4 x y^{2}}{9}$ is:

Discussion

35.	A sum of money , lent out at simple interest doubles in 4 years. Find the rate of interest.
Answer» A sum of money , lent out at simple interest doubles in 4 years. Find the rate of interest.

Discussion

36.	Subtract: (i) 5ab+4ac−6a+15c−15 from 10ab+22bc−13a−14b−16c−24 (ii) 5a2b+10b2c2−10b2c−21ab+32 from 50−20b2c2−4bc−ac−5ab. [2 MARKS]
Answer» Subtract: $(i) 5 a b + 4 a c - 6 a + 15 c - 15$ from $10 a b + 22 b c - 13 a - 14 b - 16 c - 24$ $(i i) 5 a^{2} b + 10 b^{2} c^{2} - 10 b^{2} c - 21 a b + 32$ from $50 - 20 b^{2} c^{2} - 4 b c - a c - 5 a b$ . [2 MARKS]

Discussion

37.	In the frequency distribution table given below, which class interval has the lowest frequency? Class IntervalFrequency25−35135−45545−55555−65465−75075−85885−952Total25
Answer» In the frequency distribution table given below, which class interval has the lowest frequency? $\begin{matrix} C l a s s I n t e r v a l & F r e q u e n c y 25 - 35 & 1 35 - 45 & 5 45 - 55 & 5 55 - 65 & 4 65 - 75 & 0 75 - 85 & 8 85 - 95 & 2 T o t a l & 25 \end{matrix}$

Discussion

38.	For the last 10 days, Kareem spent the same amount every day and has spent a total of Rs.230. What is the ratio of his expenditure? (i.e. number of days to the amount spent on that day) If he has Rs.345 left with him, in how many more days will he finish this amount? [3 MARKS]
Answer» For the last 10 days, Kareem spent the same amount every day and has spent a total of Rs.230. What is the ratio of his expenditure? (i.e. number of days to the amount spent on that day) If he has Rs.345 left with him, in how many more days will he finish this amount? [3 MARKS]

Discussion

39.	What is the Rational number whose numerator is the largest 3 digit natural number and the denominator is the smallest 5 digit whole number?
Answer» What is the Rational number whose numerator is the largest 3 digit natural number and the denominator is the smallest 5 digit whole number?

Discussion

40.	Question 57 Fill in the blanks to make the statements true. The sum of all ___ of a quadrilateral is 360∘.
Answer» Question 57 Fill in the blanks to make the statements true. The sum of all ___ of a quadrilateral is $360^{\circ}$ .

Discussion

41.	Draw rough diagrams to illustrate the following: (i) Open curve (ii) Closed curve
Answer» Draw rough diagrams to illustrate the following: (i) Open curve (ii) Closed curve

41.

Draw rough diagrams to illustrate the following: (i) Open curve (ii) Closed curve

Answer»

Draw rough diagrams to illustrate the following:

(i) Open curve

(ii) Closed curve

Discussion

42.	A car is travelling at constant speed and it covers a distance of 50 km in 3 hours, then what will be the distance travelled by car in 9 hours?
Answer» A car is travelling at constant speed and it covers a distance of 50 km in 3 hours, then what will be the distance travelled by car in 9 hours?

Discussion

43.	How to get cube root through estimation ?
Answer» How to get cube root through estimation ?

Discussion

44.	Find the area of the cardboard required to make a closed box of length 25 cm, 0.5 m and height 15 cm.
Answer» Find the area of the cardboard required to make a closed box of length 25 cm, 0.5 m and height 15 cm.

Discussion

45.	The surface area of a (10cm×4cm×3cm) brick is (a) 84cm2 (b) 124cm2 (c) 164cm2 (d) 180cm2
Answer» The surface area of a $(10 c m \times 4 c m \times 3 c m)$ brick is (a) $84 c m^{2}$ (b) $124 c m^{2}$ (c) $164 c m^{2}$ (d) $180 c m^{2}$

45.

The surface area of a (10cm×4cm×3cm) brick is (a) 84cm2 (b) 124cm2 (c) 164cm2 (d) 180cm2

Answer»

The surface area of a $(10 c m \times 4 c m \times 3 c m)$ brick is

(a) $84 c m^{2}$

(b) $124 c m^{2}$

(c) $164 c m^{2}$

(d) $180 c m^{2}$

Discussion

46.	My friend bought me a gift. He had left the price tag intact, so I saw that the item cost him ₹ 200. The sales tax levied on the item was 5%. What was the total amount paid by him for the gift?
Answer» My friend bought me a gift. He had left the price tag intact, so I saw that the item cost him ₹ 200. The sales tax levied on the item was 5%. What was the total amount paid by him for the gift?

Discussion

47.	The product of a monomial and a binomial is always a ________.
Answer» The product of a monomial and a binomial is always a ________.

Discussion

48.	Question 15 Find and correct the errors in the statement: (a−4)(a−2)=a2−8
Answer» Question 15 Find and correct the errors in the statement: $(a - 4) (a - 2) = a^{2} - 8$

Discussion

49.	Two lines, AB and EF are parallel to a third line, CD. What relationship exists between the two lines AB and EF?
Answer» Two lines, $A B$ and $E F$ are parallel to a third line, $C D .$ What relationship exists between the two lines $A B$ and $E F ?$

Discussion

50.	If krish's height is 25%less than vidya height, then the vidya's height is what percent more than krish's height?
Answer» If krish's height is 25%less than vidya height, then the vidya's height is what percent more than krish's height?

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Given A=B2+√9c, then C is equal to

The area of a parallelogram whose base is 4 cm and the height is 5 cm is

Find the HCF of xy and y2.

The height of the rectangle in a histogram is proportional to __________.

Question 2 (v) Consider the following parallelograms. Find the values of the unknowns x,y,z (v)

Use suitable identities and find (51)2 - (49)2

Write in the usual form: 100×a+10×c+b

Which of the following regions represents 3x?

(2x+1)(2x−1)=______

What is the coefficient of x3 in (x−3)(x+2)2 ?

−145×257×−313 is equal to .

Arrange the heights of 20 students in a grouped distribution table with a class interval of 5. The number of students whose height is below 165cm is ___ Heights (in cm): 150, 153, 162, 170, 186, 153, 162, 180, 165, 150, 178, 156, 184, 176, 173, 186, 159, 183, 180, 156.

ABCD is a parallelogram and EFGB is a rhombus. AB = 7cm; AD = 4cm. If E is the mid-point of BC, find the perimeter of the whole figure i.e., ABGFECDA.

Find the cube root of -2.744 [4 MARKS]

Find the value of: 17+(67+1)+(42+13)+1137

The volume of a closed cubical tank is 1331 cubic metre. Find the length of the side of the cubical tank

A square shaped garden with an area of 64 cm2 has to be fenced across the boundary. Find the total cost of fencing if the rate of fencing is Rs 2 per metre.

If the square root of 10 is 3.16, then find the square root of 40. [2 MARKS]

ABC is a right angled triangle. Find the length of AB. Given that BC = 12 units; AC = 13 units.

If half a number when added to the same number gives 120, then find the number.

What is the mean of the following numbers: 2, 6, 4, 9, 7, 3, 5, 4, 3, 7.

If the ratio of angles in a triangle is 3:4:5 then find the measures of angles in the triangle.

In a school, all students play either football or cricket or both. If 250 play football, 300 play cricket and 120 play both the games, then the number of students who play cricket only are ___.

If we have measurements of 2 adjacent sides and minimum of __ angles, we can construct a unique quadrilateral.

Five cubes of side 4 cm are joined together side by side to form a cuboid, find the total surface area of the resultant cuboid.

Find the area of the given quadrilateral ABCD, given that the length of BD, AE and BC are 28 cm, 12 cm, and 8 cm respectively and AE and BC are perpendiculars from vertices A and C respectively.

There are 3 consequetine single digit positive Numbers that add upto 24. Find the numbers.

When opposite sides are equal and all angles are right angles, then the quadrilateral formed is known as ______ .

Find the area of quadrilateral ABCD in sq.units. Given AE = 5 units, BD =16 units and CF = 4 units.

The area of the colored region in the figure will be = (Area of X) (Y) (Area of Z). Identify X, Y and Z.

A cylindrical tube open at both ends is made of metal. The internal diameter of the tube is 11.2 cm and its length is 21 cm .The metal everywhere is 0.4 cm thick. The volume of the metal used is

Coefficient of xy2 in the term −4xy29 is:

A sum of money , lent out at simple interest doubles in 4 years. Find the rate of interest.

Subtract: (i) 5ab+4ac−6a+15c−15 from 10ab+22bc−13a−14b−16c−24 (ii) 5a2b+10b2c2−10b2c−21ab+32 from 50−20b2c2−4bc−ac−5ab. [2 MARKS]

In the frequency distribution table given below, which class interval has the lowest frequency? Class IntervalFrequency25−35135−45545−55555−65465−75075−85885−952Total25

For the last 10 days, Kareem spent the same amount every day and has spent a total of Rs.230. What is the ratio of his expenditure? (i.e. number of days to the amount spent on that day) If he has Rs.345 left with him, in how many more days will he finish this amount? [3 MARKS]

What is the Rational number whose numerator is the largest 3 digit natural number and the denominator is the smallest 5 digit whole number?

Question 57 Fill in the blanks to make the statements true. The sum of all ___ of a quadrilateral is 360∘.

Draw rough diagrams to illustrate the following: (i) Open curve (ii) Closed curve

A car is travelling at constant speed and it covers a distance of 50 km in 3 hours, then what will be the distance travelled by car in 9 hours?

How to get cube root through estimation ?

Find the area of the cardboard required to make a closed box of length 25 cm, 0.5 m and height 15 cm.

The surface area of a (10cm×4cm×3cm) brick is (a) 84cm2 (b) 124cm2 (c) 164cm2 (d) 180cm2

My friend bought me a gift. He had left the price tag intact, so I saw that the item cost him ₹ 200. The sales tax levied on the item was 5%. What was the total amount paid by him for the gift?

The product of a monomial and a binomial is always a ________.

Question 15 Find and correct the errors in the statement: (a−4)(a−2)=a2−8

Two lines, AB and EF are parallel to a third line, CD. What relationship exists between the two lines AB and EF?

If krish's height is 25%less than vidya height, then the vidya's height is what percent more than krish's height?