19743 + Interview Questions in Mathematics Page 259 InterviewSolution

12901.	An item was sold for Rs. 540 at a loss of 5%. What was the cost price?
Answer» An item was sold for $R s . 540$ at a loss of $5 %$ . What was the cost price?

Discussion

12902.	Reena scored 14.50 marks while Mohan scored 14.25 marks in an exam. How much more did Reena score as compared to Mohan?
Answer» Reena scored 14.50 marks while Mohan scored 14.25 marks in an exam. How much more did Reena score as compared to Mohan?

Discussion

12903.	In the figure, if PQ∥RS, ∠MXQ=135∘ and ∠MYR=40∘, find ∠XMY.
Answer» In the figure, if $P Q ∥ R S, ∠ M X Q = 135^{\circ}$ and $∠ M Y R = 40^{\circ}$ , find $∠ X M Y$ .

12903.

In the figure, if PQ∥RS, ∠MXQ=135∘ and ∠MYR=40∘, find ∠XMY.

Answer»

In the figure, if $P Q ∥ R S, ∠ M X Q = 135^{\circ}$ and $∠ M Y R = 40^{\circ}$ , find $∠ X M Y$ .

Discussion

12904.	Write a rational number equal to 35 with 15 as the numerator.
Answer» Write a rational number equal to $\frac{3}{5}$ with 15 as the numerator.

Discussion

12905.	Question 34 Fill in the blanks to make the statements true. 1m2= ___ cm2
Answer» Question 34 Fill in the blanks to make the statements true. $1 m^{2} =$ ___ $c m^{2}$

12905.

Question 34 Fill in the blanks to make the statements true. 1m2= ___ cm2

Answer»

Question 34

Fill in the blanks to make the statements true.

$1 m^{2} =$ ___ $c m^{2}$

Discussion

12906.	What is the sum of all the three angles in a set-square?
Answer» What is the sum of all the three angles in a set-square?

Discussion

12907.	The value of (243)−25 is _______.
Answer» The value of $(243)^{- \frac{2}{5}}$ is _______.

Discussion

12908.	Find the top view of the figure below.
Answer» Find the top view of the figure below.

Discussion

12909.	What should be subtracted from −23 to get 56?
Answer» What should be subtracted from $\frac{- 2}{3}$ to get $\frac{5}{6}$ ?

Discussion

12910.	Which of the following operation is not allowed in a given linear equation?
Answer» Which of the following operation is not allowed in a given linear equation?

Discussion

12911.	−212−312 = _____
Answer» $- 2 \frac{1}{2} - 3 \frac{1}{2}$ = _____

Discussion

12912.	Refer to the following figure. Three squares are constructed on each side of the triangle as shown, with the length of each square equal to the side of the triangle on which it is constructed. The angle opposite to the blue colour square is the right angle. If the largest side is 13, then sum of the areas of the three squares is _____.
Answer» Refer to the following figure. Three squares are constructed on each side of the triangle as shown, with the length of each square equal to the side of the triangle on which it is constructed. The angle opposite to the blue colour square is the right angle. If the largest side is 13, then sum of the areas of the three squares is _____.

Discussion

12913.	If a figure is rotated by 180o the figure looks exactly same then it has rotational symmetry of order ______ .
Answer» If a figure is rotated by 180^o the figure looks exactly same then it has rotational symmetry of order ______ .

Discussion

12914.	Question 5(h) Find the product, using suitable properties: (−57)×(−19)+57
Answer» Question 5(h) Find the product, using suitable properties: $(- 57) \times (- 19) + 57$

Discussion

12915.	How many pieces of equal size can be cut from a rope of 30 metres, each measuring 334metres?8
Answer» $How many pieces of equal size can be cut from a rope of 30 metres, each measuring 3 \frac{3}{4} metres?$ 8

Discussion

12916.	“Did you understand?” Jack asked. At this, Jacob said, “I understood what mode is. Give me any question, I can find the mode of the observations.” Jack smiled at him and said- “Okay, I will give you a question and 3 hrs to solve it.” Jacob felt strange as for finding mode, 3 minutes would be enough, why was he given 3 hrs? Then Jack gave the problem: What is the mode of the following set of observations? 913596991713111213191309132171371790711
Answer» “Did you understand?” Jack asked. At this, Jacob said, “I understood what mode is. Give me any question, I can find the mode of the observations.” Jack smiled at him and said- “Okay, I will give you a question and 3 hrs to solve it.” Jacob felt strange as for finding mode, 3 minutes would be enough, why was he given 3 hrs? Then Jack gave the problem: What is the mode of the following set of observations? $\begin{matrix} 9 & 13 & 5 & 9 & 6 & 9 & 9 & 17 & 13 & 11 & 12 & 13 & 19 13 & 0 & 9 & 13 & 21 & 7 & 13 & 7 & 17 & 9 & 0 & 7 & 11 \end{matrix}$

12916.

“Did you understand?” Jack asked. At this, Jacob said, “I understood what mode is. Give me any question, I can find the mode of the observations.” Jack smiled at him and said- “Okay, I will give you a question and 3 hrs to solve it.” Jacob felt strange as for finding mode, 3 minutes would be enough, why was he given 3 hrs? Then Jack gave the problem: What is the mode of the following set of observations? 913596991713111213191309132171371790711

Answer»

“Did you understand?” Jack asked. At this, Jacob said, “I understood what mode is. Give me any question, I can find the mode of the observations.” Jack smiled at him and said- “Okay, I will give you a question and 3 hrs to solve it.” Jacob felt strange as for finding mode, 3 minutes would be enough, why was he given 3 hrs? Then Jack gave the problem:

What is the mode of the following set of observations?

$\begin{matrix} 9 & 13 & 5 & 9 & 6 & 9 & 9 & 17 & 13 & 11 & 12 & 13 & 19 13 & 0 & 9 & 13 & 21 & 7 & 13 & 7 & 17 & 9 & 0 & 7 & 11 \end{matrix}$

Discussion

12917.	Question 63 Observe all the four triangles FAB, EAB, DAB and CAB as shown in the figure. State whether the statement is True or False. All triangles are congruent.
Answer» Question 63 Observe all the four triangles FAB, EAB, DAB and CAB as shown in the figure. State whether the statement is True or False. All triangles are congruent.

12917.

Question 63 Observe all the four triangles FAB, EAB, DAB and CAB as shown in the figure. State whether the statement is True or False. All triangles are congruent.

Answer»

Question 63

Observe all the four triangles FAB, EAB, DAB and CAB as shown in the figure.

State whether the statement is True or False.

All triangles are congruent.

Discussion

12918.	If 1 gram of gold costs Rs.175.50, then how much will 15 grams of gold cost?
Answer» If 1 gram of gold costs Rs.175.50, then how much will 15 grams of gold cost?

Discussion

12919.	Given, ABCD is a square; the sides AD = 5 cm AP = 1 cm CR = 1 cm Find the area of ΔPQR
Answer» Given, ABCD is a square; the sides AD = 5 cm AP = 1 cm CR = 1 cm Find the area of $Δ P Q R$

Discussion

12920.	Which expression matches the statement "add 5x and 3x, then subtract the so obtained sum from 12y”?
Answer» Which expression matches the statement "add $5 x$ and $3 x$ , then subtract the so obtained sum from $12 y$ ”?

Discussion

12921.	Question 36 In questions 24 to 59, fill in the blanks to make the statements true. ___ is 50 % more than 60.
Answer» Question 36 In questions 24 to 59, fill in the blanks to make the statements true. ___ is 50 % more than 60.

12921.

Question 36 In questions 24 to 59, fill in the blanks to make the statements true. ___ is 50 % more than 60.

Answer»

Question 36

In questions 24 to 59, fill in the blanks to make the statements true.
___ is 50 % more than 60.

Discussion

12922.	Out of three positive numbers, the ratio of the first and the second is 10:11 and that of the second and third is 1:2 . Find the three numbers if the product of the first and the second is 2750 .
Answer» Out of three positive numbers, the ratio of the first and the second is 10:11 and that of the second and third is 1:2 . Find the three numbers if the product of the first and the second is 2750 .

Discussion

12923.	What is the units digit of the square of 2935?
Answer» What is the units digit of the square of 2935?

Discussion

12924.	The angle formed by bisecting a 30∘ angle is ___
Answer» The angle formed by bisecting a $30^{\circ}$ angle is ___

Discussion

12925.	Consider the figure: If BC = AC and angle ACB = 60o, then find the value of ∠A + ∠B + ∠x + ∠y . ___
Answer» Consider the figure: If BC = AC and angle ACB = 60^o, then find the value of $∠$ A + $∠$ B + $∠$ x + $∠$ y . ___

12925.

Consider the figure: If BC = AC and angle ACB = 60o, then find the value of ∠A + ∠B + ∠x + ∠y . ___

Answer»

Consider the figure:

If BC = AC and angle ACB = 60^o, then find the value of $∠$ A + $∠$ B + $∠$ x + $∠$ y .

___

Discussion

12926.	5y + 2y+ y = 180 Please solve this sum
Answer» 5y + 2y+ y = 180 Please solve this sum

12926.

5y + 2y+ y = 180 Please solve this sum

Answer»

5y + 2y+ y = 180

Please solve this sum

Discussion

12927.	How much time will it take for ₹ 800 to yield a simple interest of ₹ 80 at 5% per annum?
Answer» How much time will it take for ₹ 800 to yield a simple interest of ₹ 80 at $5 %$ per annum?

Discussion

12928.	In a colony, the number of rooms in an apartment is equal to the number of apartments. If the total number of rooms in the colony is 2401, what is the number of apartments?
Answer» In a colony, the number of rooms in an apartment is equal to the number of apartments. If the total number of rooms in the colony is 2401, what is the number of apartments?

Discussion

12929.	The curved surface area of a cylindrical pillar is 264m^2 and it's volume is 924m^3. Find the diameter and height of the pillar.
Answer» The curved surface area of a cylindrical pillar is 264m^2 and it's volume is 924m^3. Find the diameter and height of the pillar.

Discussion

12930.	2 angles forming a linear pair are in the ratio of 4:5. Find the angles.
Answer» 2 angles forming a linear pair are in the ratio of 4:5. Find the angles.

Discussion

12931.	If a = -8 , b = -7 ,c = 6 verify thtt (a+b) + c = a + ( b + c )
Answer» If a = -8 , b = -7 ,c = 6 verify thtt (a+b) + c = a + ( b + c )

Discussion

12932.	In the adjoining figure, the value of ∠A+∠B+∠C+∠D+∠E+∠F in degrees is ___
Answer» In the adjoining figure, the value of $∠ A + ∠ B + ∠ C + ∠ D + ∠ E + ∠ F$ in degrees is ___

12932.

In the adjoining figure, the value of ∠A+∠B+∠C+∠D+∠E+∠F in degrees is ___

Answer»

In the adjoining figure, the value of $∠ A + ∠ B + ∠ C + ∠ D + ∠ E + ∠ F$ in degrees is

___

Discussion

12933.	(i) What should be subtracted from -2 to get38?(ii) What should be added to -2 to get 38?
Answer» $(i) What should be subtracted from -2 to get \frac{3}{8} ? (i i) What should be added to -2 to get \frac{3}{8} ?$

Discussion

12934.	The shaded region OAB is known as :
Answer» The shaded region OAB is known as :

12934.

The shaded region OAB is known as :

Answer»

The shaded region OAB is known as :

Discussion

12935.	51 ÷ r = (- 51). Find 'r'
Answer» 51 $\div$ r = (- 51). Find 'r'

Discussion

12936.	For any integer a, a ÷ 0 is
Answer» For any integer a, a ÷ 0 is

Discussion

12937.	(+12)×(−4)=
Answer» $(+ 12) \times (- 4) =$

Discussion

12938.	3a−[4a−¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯3a−5b−3{2a−(3a−¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯2a−3b)}] =
Answer» $3 a - [4 a - ¯ ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ ¯ 3 a - 5 b - 3 {2 a - (3 a - ¯ ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ ¯ 2 a - 3 b)}]$ =

Discussion

12939.	Predecessor of -9 is
Answer» Predecessor of -9 is

Discussion

12940.	Find the product of the multiplicative inverse of 6 1/2 and the additive inverse of 2 1/3
Answer» Find the product of the multiplicative inverse of 6 1/2 and the additive inverse of 2 1/3

Discussion

12941.	Is this statement true or false . For subtraction , we add the Additive inverse of the integer that is being subtracted , to the other integer. Please explain in detail.
Answer» Is this statement true or false . For subtraction , we add the Additive inverse of the integer that is being subtracted , to the other integer. Please explain in detail.

Discussion

12942.	For vacation, Ted was going to a hill station. When he started, he checked out the odometer of his dad’s car. The reading was 1111.22 km. After the journey, the reading was 1342.56 km. How many metres did Ted travel through?
Answer» For vacation, Ted was going to a hill station. When he started, he checked out the odometer of his dad’s car. The reading was 1111.22 km. After the journey, the reading was 1342.56 km. How many metres did Ted travel through?

Discussion

12943.	The sum of the digits of a two digit number is 9. When 9 is added to the number, the digits of the number will reverse. What is the original number?
Answer» The sum of the digits of a two digit number is 9. When 9 is added to the number, the digits of the number will reverse. What is the original number?

12943.

The sum of the digits of a two digit number is 9. When 9 is added to the number, the digits of the number will reverse. What is the original number?

Answer»

The sum of the digits of a two digit number is 9. When 9 is added to the number, the digits of the number will reverse.

What is the original number?

Discussion

12944.	When the rate of sale- tax is decreased from 9% to 6% for a coloured T.V; Mrs. Geeta will save Rs. 780 in buying this T.V. Find the list price of the T.V.
Answer» When the rate of sale- tax is decreased from 9% to 6% for a coloured T.V; Mrs. Geeta will save Rs. 780 in buying this T.V. Find the list price of the T.V.

Discussion

12945.	Anmol drew a circle and divided it into four equal parts. Find the ratio of the area of the shaded part and area of the circle.
Answer» Anmol drew a circle and divided it into four equal parts. Find the ratio of the area of the shaded part and area of the circle.

12945.

Anmol drew a circle and divided it into four equal parts. Find the ratio of the area of the shaded part and area of the circle.

Answer»

Anmol drew a circle and divided it into four equal parts.

Find the ratio of the area of the shaded part and area of the circle.

Discussion

12946.	Suhan can do a work in 15 days and Ankush in 20 days. If they work on it together for 4 days, then the fraction of the work that left is
Answer» Suhan can do a work in 15 days and Ankush in 20 days. If they work on it together for 4 days, then the fraction of the work that left is

Discussion

12947.	Question 98 State whether the statement is True or False. If three angles of two triangles are equal, triangles are congruent.
Answer» Question 98 State whether the statement is True or False. If three angles of two triangles are equal, triangles are congruent.

12947.

Question 98 State whether the statement is True or False. If three angles of two triangles are equal, triangles are congruent.

Answer»

Question 98

State whether the statement is True or False.

If three angles of two triangles are equal, triangles are congruent.

Discussion

12948.	Find the area of the sector whose arc is making an angle of 60∘ at the center of a circle of radius 3.2 cm. What will be the area of the balance sector? I saw the ans to this ques but did not understand. Can u pls make me understand in a simple way?
Answer» Find the area of the sector whose arc is making an angle of 60∘ at the center of a circle of radius 3.2 cm. What will be the area of the balance sector? I saw the ans to this ques but did not understand. Can u pls make me understand in a simple way?

Discussion

12949.	How many lines of symmetry does this shape have?
Answer» How many lines of symmetry does this shape have?

12949.

How many lines of symmetry does this shape have?

Answer»

How many lines of symmetry does this shape have?

Discussion

12950.	How is the pre-image(A) related to the image(B)?
Answer» How is the pre-image(A) related to the image(B)?

Discussion

Explore topic-wise InterviewSolutions in .

An item was sold for Rs. 540 at a loss of 5%. What was the cost price?

Reena scored 14.50 marks while Mohan scored 14.25 marks in an exam. How much more did Reena score as compared to Mohan?

In the figure, if PQ∥RS, ∠MXQ=135∘ and ∠MYR=40∘, find ∠XMY.

Write a rational number equal to 35 with 15 as the numerator.

Question 34 Fill in the blanks to make the statements true. 1m2= ___ cm2

What is the sum of all the three angles in a set-square?

The value of (243)−25 is _______.

Find the top view of the figure below.

What should be subtracted from −23 to get 56?

Which of the following operation is not allowed in a given linear equation?

−212−312 = _____

If a figure is rotated by 180o the figure looks exactly same then it has rotational symmetry of order ______ .

Question 5(h) Find the product, using suitable properties: (−57)×(−19)+57

How many pieces of equal size can be cut from a rope of 30 metres, each measuring 334metres?8

Question 63 Observe all the four triangles FAB, EAB, DAB and CAB as shown in the figure. State whether the statement is True or False. All triangles are congruent.

If 1 gram of gold costs Rs.175.50, then how much will 15 grams of gold cost?

Given, ABCD is a square; the sides AD = 5 cm AP = 1 cm CR = 1 cm Find the area of ΔPQR

Which expression matches the statement "add 5x and 3x, then subtract the so obtained sum from 12y”?

Question 36 In questions 24 to 59, fill in the blanks to make the statements true. ___ is 50 % more than 60.

Out of three positive numbers, the ratio of the first and the second is 10:11 and that of the second and third is 1:2 . Find the three numbers if the product of the first and the second is 2750 .

What is the units digit of the square of 2935?

The angle formed by bisecting a 30∘ angle is ___

Consider the figure: If BC = AC and angle ACB = 60o, then find the value of ∠A + ∠B + ∠x + ∠y . ___

5y + 2y+ y = 180 Please solve this sum

How much time will it take for ₹ 800 to yield a simple interest of ₹ 80 at 5% per annum?

In a colony, the number of rooms in an apartment is equal to the number of apartments. If the total number of rooms in the colony is 2401, what is the number of apartments?

The curved surface area of a cylindrical pillar is 264m^2 and it's volume is 924m^3. Find the diameter and height of the pillar.

2 angles forming a linear pair are in the ratio of 4:5. Find the angles. ​​​​

If a = -8 , b = -7 ,c = 6 verify thtt (a+b) + c = a + ( b + c )

In the adjoining figure, the value of ∠A+∠B+∠C+∠D+∠E+∠F in degrees is ___

(i) What should be subtracted from -2 to get38?(ii) What should be added to -2 to get 38?

The shaded region OAB is known as :

51 ÷ r = (- 51). Find 'r'

For any integer a, a ÷ 0 is

(+12)×(−4)=

3a−[4a−¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯3a−5b−3{2a−(3a−¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯2a−3b)}] =

Predecessor of -9 is

Find the product of the multiplicative inverse of 6 1/2 and the additive inverse of 2 1/3

Is this statement true or false . For subtraction , we add the Additive inverse of the integer that is being subtracted , to the other integer. Please explain in detail.

For vacation, Ted was going to a hill station. When he started, he checked out the odometer of his dad’s car. The reading was 1111.22 km. After the journey, the reading was 1342.56 km. How many metres did Ted travel through?

The sum of the digits of a two digit number is 9. When 9 is added to the number, the digits of the number will reverse. What is the original number?

When the rate of sale- tax is decreased from 9% to 6% for a coloured T.V; Mrs. Geeta will save Rs. 780 in buying this T.V. Find the list price of the T.V.

Anmol drew a circle and divided it into four equal parts. Find the ratio of the area of the shaded part and area of the circle.

Suhan can do a work in 15 days and Ankush in 20 days. If they work on it together for 4 days, then the fraction of the work that left is

Question 98 State whether the statement is True or False. If three angles of two triangles are equal, triangles are congruent.

Find the area of the sector whose arc is making an angle of 60∘ at the center of a circle of radius 3.2 cm. What will be the area of the balance sector? I saw the ans to this ques but did not understand. Can u pls make me understand in a simple way?

How many lines of symmetry does this shape have?

How is the pre-image(A) related to the image(B)?

2 angles forming a linear pair are in the ratio of 4:5. Find the angles.