19743 + Interview Questions in Mathematics Page 10 InterviewSolution

451.	There is a discount of $25 on both the cake and the cupcake. Select the combined cost of both the cakes after the discount.
Answer» There is a discount of $$ \frac{2}{5}$ on both the cake and the cupcake. Select the combined cost of both the cakes after the discount.

Discussion

452.	Find the smallest whole number.
Answer» Find the smallest whole number.

Discussion

453.	Which of the following have point symmetry?
Answer» Which of the following have point symmetry?

Discussion

454.	The cost of caviar nachos is increasing continuously. Which of the following graph will depict the prescribed scenario?
Answer» The cost of caviar nachos is increasing continuously. Which of the following graph will depict the prescribed scenario?

Discussion

455.	An article with marked price Rs. 450 is sold for Rs. 400. Find the discount percent.
Answer» An article with marked price $R s . 450$ is sold for $R s . 400.$ Find the discount percent.

455.

An article with marked price Rs. 450 is sold for Rs. 400. Find the discount percent.

Answer»

An article with marked price $R s . 450$ is sold for $R s . 400.$ Find the discount percent.

Discussion

456.	how to find 2 rational number whose sum is posstive and if the smaller is divides by the greater number the result is 1/2
Answer» how to find 2 rational number whose sum is posstive and if the smaller is divides by the greater number the result is 1/2

Discussion

457.	Question 8Write True or False and justify your answer:The cost of leveling the ground in the form of a triangle having the sides 51m, 37m and 20m at the rate of Rs.3 per m2 is Rs.918.
Answer» Question 8 Write True or False and justify your answer: The cost of leveling the ground in the form of a triangle having the sides 51m, 37m and 20m at the rate of Rs.3 per $m^{2}$ is Rs.918.

Discussion

458.	Find the area of the figure, if the diameter BC is 14 cm and AD = 16 cm.
Answer» Find the area of the figure, if the diameter BC is 14 cm and AD = 16 cm.

Discussion

459.	Give the steps you will use to separate the variable and then solve the equation:(a) 3n − 2 = 46 (b) 5m + 7 = 17 (c) (d)
Answer» Give the steps you will use to separate the variable and then solve the equation: (a) 3n − 2 = 46 (b) 5m + 7 = 17 (c) (d)

459.

Give the steps you will use to separate the variable and then solve the equation:(a) 3n − 2 = 46 (b) 5m + 7 = 17 (c) (d)

Answer»

Give the steps you will use to separate the variable and then solve the equation:

(a) 3n − 2 = 46 (b) 5m + 7 = 17 (c)

(d)

Discussion

460.	Sam always writes more than 400 words but less than 750 words for an essay. If x is the number of words written on any particular day, then .
Answer» Sam always writes more than 400 words but less than 750 words for an essay. If $x$ is the number of words written on any particular day, then .

Discussion

461.	In decimal number 17.58, decimal part is
Answer» In decimal number 17.58, decimal part is

Discussion

462.	if rational no.s are closed under commutativity then -1/4 +5/4=1 and this is not a rational no.
Answer» if rational no.s are closed under commutativity then -1/4 +5/4=1 and this is not a rational no.

Discussion

463.	If S2 and S4 denote respectively the sum of the squares and the sum of the fourth powers of first n natural numbers, then S4S2=_______________.
Answer» If S₂ and S₄ denote respectively the sum of the squares and the sum of the fourth powers of first n natural numbers, then $\frac{S_{4}}{S_{2}} =$ _______________.

Discussion

464.	The area of a rectangular ground is 120m2 and its length is 12 m. Find the cost of fencing the ground at the rate of Rs.125 per metre.
Answer» The area of a rectangular ground is $120 m^{2}$ and its length is $12$ m. Find the cost of fencing the ground at the rate of $R s .125$ per metre.

Discussion

465.	Out of her total income Mrs Sharma soends 20% on house rent and 70%on household expenditure.If she saves Rs 1800,what is the total income?
Answer» Out of her total income Mrs Sharma soends 20% on house rent and 70%on household expenditure.If she saves Rs 1800,what is the total income?

Discussion

466.	Observe the following graph and answer the questions.(1) State the type of the bar graph.(2) How much percent is the Tur production to total production in Ajita'a farm?(3) Compare the production of Gram in the farms of Yash and Ravi and state whose percentage of production is more and by how much?(4) Whose percentage production fo Tur is the least?(5) State production percentages of Tur and gram in Sudha's farm
Answer» Observe the following graph and answer the questions. (1) State the type of the bar graph. (2) How much percent is the Tur production to total production in Ajita'a farm? (3) Compare the production of Gram in the farms of Yash and Ravi and state whose percentage of production is more and by how much? (4) Whose percentage production fo Tur is the least? (5) State production percentages of Tur and gram in Sudha's farm

Discussion

467.	Question 1State whether the following is true or false.By geometrical construction,it ispossible to divide a line segment in the ratio √3:1√3.
Answer» Question 1 State whether the following is true or false. By geometrical construction,it ispossible to divide a line segment in the ratio $\sqrt{3} : \frac{1}{\sqrt{3}}$ .

Discussion

468.	Dice are cubes withdots on each face. Opposite faces of a die always have a total ofseven dots on them.Here are two nets tomake dice (cubes); the numbers inserted in each square indicate thenumber of dots in that box.Insert suitable numbersin the blanks, remembering that the number on the opposite facesshould total to 7.
Answer» Dice are cubes with dots on each face. Opposite faces of a die always have a total of seven dots on them. Here are two nets to make dice (cubes); the numbers inserted in each square indicate the number of dots in that box. Insert suitable numbers in the blanks, remembering that the number on the opposite faces should total to 7.

468.

Dice are cubes withdots on each face. Opposite faces of a die always have a total ofseven dots on them.Here are two nets tomake dice (cubes); the numbers inserted in each square indicate thenumber of dots in that box.Insert suitable numbersin the blanks, remembering that the number on the opposite facesshould total to 7.

Answer»

Dice are cubes with
dots on each face. Opposite faces of a die always have a total of
seven dots on them.

Here are two nets to
make dice (cubes); the numbers inserted in each square indicate the
number of dots in that box.

Insert suitable numbers
in the blanks, remembering that the number on the opposite faces
should total to 7.

Discussion

469.	If the side of a square is 'a' units long, the area of the square is ka2 square units, k = ____
Answer» If the side of a square is 'a' units long, the area of the square is k $a^{2}$ square units, k = ____

Discussion

470.	The sum of the cost of one notebook and one pen together is 34 rupees and the difference between the cost of one notebook and the cost of one pen is 2 rupees. Then the cost of five notebooks and two pens together is
Answer» The sum of the cost of one notebook and one pen together is 34 rupees and the difference between the cost of one notebook and the cost of one pen is 2 rupees. Then the cost of five notebooks and two pens together is

Discussion

471.	Two years ago, father was three times as old as his son and two years hence, twicehis age will be equal to five times that of his son. Find their present ages.
Answer» Two years ago, father was three times as old as his son and two years hence, twicehis age will be equal to five times that of his son. Find their present ages.

Discussion

472.	Q. The ratio of Fe+3 and Fe+2 in Fe0.9 S1.0 is1)0.282)0.53)24)4
Answer» Q. The ratio of Fe+3 and Fe+2 in Fe0.9 S1.0 is 1)0.28 2)0.5 3)2 4)4

Discussion

473.

Write the multiplication table of 14 with the help of tables 4 and 10.

Answer»

Write the multiplication table of 14 with the help of tables 4 and 10.

Discussion

474.	Component of 3i+4j perpendicular to i+j and in the same plane as that of 3i+4j is 1)1/2(j-i) 2(j-i) 3)2(j-i)
Answer» Component of 3i+4j perpendicular to i+j and in the same plane as that of 3i+4j is 1)1/2(j-i) 2(j-i) 3)2(j-i)

Discussion

475.	Question 65 (iv)How many vertices does the following solid have?Octagonal Pyramid
Answer» Question 65 (iv) How many vertices does the following solid have? Octagonal Pyramid

Discussion

476.	Question 95 What percent of 1h is 30 min?
Answer» Question 95 What percent of 1h is 30 min?

476.

Question 95 What percent of 1h is 30 min?

Answer»

Question 95

What percent of 1h is 30 min?

Discussion

477.	Raman bought 1 kg newspaper for ₹ 4 and sold it for ₹ 5. How much money can he earn by selling 152 kg of newspaper?
Answer» Raman bought 1 kg newspaper for ₹ 4 and sold it for ₹ 5. How much money can he earn by selling 152 kg of newspaper?

Discussion

478.	The number of terms in (1+x)^(101)(1+x^(2)-x)^(100) is (1) 101 (2) 202 (3) 301 (4) 302
Answer» The number of terms in (1+x)^(101)(1+x^(2)-x)^(100) is (1) 101 (2) 202 (3) 301 (4) 302

Discussion

479.	What are the common factors of 3x3y, 5xy2 and 15xy?
Answer» What are the common factors of $3 x^{3} y$ , $5 x y^{2}$ and $15 x y$ ?

Discussion

480.	What is 7/9 - 3/9?
Answer» What is 7/9 - 3/9?

Discussion

481.	The probability of getting at least one tail, when four coins are tossed is .
Answer» The probability of getting at least one tail, when four coins are tossed is .

Discussion

482.	Given that x and y are in inverse proportion, and y1, y2 are values of y corresponding to the values x1, x2 of x respectively. Which of the following is correct?
Answer» Given that x and y are in inverse proportion, and y1, y2 are values of y corresponding to the values x1, x2 of x respectively. Which of the following is correct?

Discussion

483.	If A and B are two non empty sets and A is proper subset of B. If n(A) =5, then minimum possible value of n(A symmetric difference B) is?
Answer» If A and B are two non empty sets and A is proper subset of B. If n(A) =5, then minimum possible value of n(A symmetric difference B) is?

Discussion

484.	The number of line segments in the figure given below is ____.
Answer» The number of line segments in the figure given below is ____.

Discussion

485.	Simplify the following fraction to its lowest form.
Answer» Simplify the following fraction to its lowest form.

Discussion

486.	Question 31(i)An integer is chosen between 0 and 100. What is the probability that it is divisible by 7?
Answer» Question 31(i) An integer is chosen between 0 and 100. What is the probability that it is divisible by 7?

Discussion

487.	A letter is chosen from the word 'PERIMETER'. What is the probability that the letter chosen is 'E'?
Answer» A letter is chosen from the word 'PERIMETER'. What is the probability that the letter chosen is 'E'?

Discussion

488.	Study the graph carefully to answer the questions that follow. Number of people working in Bamboo industries from different villages and the ratio of men to women working: Q72. What is the number of women working in Bamboo industries from village E?
Answer» Study the graph carefully to answer the questions that follow. Number of people working in Bamboo industries from different villages and the ratio of men to women working: Q72. What is the number of women working in Bamboo industries from village E?

488.

Study the graph carefully to answer the questions that follow. Number of people working in Bamboo industries from different villages and the ratio of men to women working: Q72. What is the number of women working in Bamboo industries from village E?

Answer»

Study the graph carefully to answer the questions that follow.

Number of people working in Bamboo industries from different villages and the ratio of men to women working:

Q72. What is the number of women working in Bamboo industries from village E?

Discussion

489.	What is the value of 5.8 + 7.3?
Answer» What is the value of 5.8 + 7.3?

Discussion

490.	The given pie chart shows marks scored by a student in different subjects in an examination.If the total marks are 1000, then the difference of marks scored in mathematics and physics is
Answer» The given pie chart shows marks scored by a student in different subjects in an examination. If the total marks are 1000, then the difference of marks scored in mathematics and physics is

Discussion

491.	(xy2+2z)×2xy=
Answer» $(x y^{2} + 2 z) \times 2 x y =$

Discussion

492.	3 Numbersare chosen from 1 to 30. Find the probability that they are not consecutive
Answer» 3 Numbersare chosen from 1 to 30. Find the probability that they are not consecutive

Discussion

493.	How I should do a birthday trick?
Answer» How I should do a birthday trick?

Discussion

494.	Select the odd one out.
Answer» Select the odd one out.

494.

Select the odd one out.

Answer»

Select the odd one out.

Discussion

495.	A table marked at Rs. 15000 is available for Rs. 14400. What is the discount %?
Answer» A table marked at $R s . 15000$ is available for $R s . 14400.$ What is the discount $%$ ?

Discussion

496.	Find the remaining angles in the following figure.(a) (b) (c) (d)
Answer» Find the remaining angles in the following figure. (a) (b) (c) (d)

496.

Find the remaining angles in the following figure.(a) (b) (c) (d)

Answer»

Find the remaining angles in the following figure.

(a)

(b)

(c)

(d)

Discussion

497.	The integrating factor of the differential equation dydx+y=1+yx is _____________________.
Answer» The integrating factor of the differential equation $\frac{d y}{d x} + y = \frac{1 + y}{x} is_____________________.$

Discussion

498.	Let s be the sum p be the product and r be the sum of the reciprocals of three term of a gp then prove that p2 r3=s3
Answer» Let s be the sum p be the product and r be the sum of the reciprocals of three term of a gp then prove that p2 r3=s3

Discussion

499.	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

500.	What is the expanded form of (a + b) (a − b).
Answer» What is the expanded form of (a + b) (a − b).

Discussion

Explore topic-wise InterviewSolutions in .

There is a discount of $25 on both the cake and the cupcake. Select the combined cost of both the cakes after the discount.

Find the smallest whole number.

Which of the following have point symmetry?

The cost of caviar nachos is increasing continuously. Which of the following graph will depict the prescribed scenario?

An article with marked price Rs. 450 is sold for Rs. 400. Find the discount percent.

how to find 2 rational number whose sum is posstive and if the smaller is divides by the greater number the result is 1/2

Question 8Write True or False and justify your answer:The cost of leveling the ground in the form of a triangle having the sides 51m, 37m and 20m at the rate of Rs.3 per m2 is Rs.918.

Find the area of the figure, if the diameter BC is 14 cm and AD = 16 cm.

Give the steps you will use to separate the variable and then solve the equation:(a) 3n − 2 = 46 (b) 5m + 7 = 17 (c) (d)

Sam always writes more than 400 words but less than 750 words for an essay. If x is the number of words written on any particular day, then .

In decimal number 17.58, decimal part is

if rational no.s are closed under commutativity then -1/4 +5/4=1 and this is not a rational no.

If S2 and S4 denote respectively the sum of the squares and the sum of the fourth powers of first n natural numbers, then S4S2=_______________.

The area of a rectangular ground is 120m2 and its length is 12 m. Find the cost of fencing the ground at the rate of Rs.125 per metre.

Out of her total income Mrs Sharma soends 20% on house rent and 70%on household expenditure.If she saves Rs 1800,what is the total income?

Question 1State whether the following is true or false.By geometrical construction,it ispossible to divide a line segment in the ratio √3:1√3.

If the side of a square is 'a' units long, the area of the square is ka2 square units, k = ____

The sum of the cost of one notebook and one pen together is 34 rupees and the difference between the cost of one notebook and the cost of one pen is 2 rupees. Then the cost of five notebooks and two pens together is

Two years ago, father was three times as old as his son and two years hence, twicehis age will be equal to five times that of his son. Find their present ages.

Q. The ratio of Fe+3 and Fe+2 in Fe0.9 S1.0 is1)0.282)0.53)24)4

Write the multiplication table of 14 with the help of tables 4 and 10.

Component of 3i+4j perpendicular to i+j and in the same plane as that of 3i+4j is 1)1/2(j-i) 2(j-i) 3)2(j-i)

Question 65 (iv)How many vertices does the following solid have?Octagonal Pyramid

Question 95 What percent of 1h is 30 min?

Raman bought 1 kg newspaper for ₹ 4 and sold it for ₹ 5. How much money can he earn by selling 152 kg of newspaper?

The number of terms in (1+x)^(101)(1+x^(2)-x)^(100) is (1) 101 (2) 202 (3) 301 (4) 302

What are the common factors of 3x3y, 5xy2 and 15xy?

What is 7/9 - 3/9?

The probability of getting at least one tail, when four coins are tossed is .

Given that x and y are in inverse proportion, and y1, y2 are values of y corresponding to the values x1, x2 of x respectively. Which of the following is correct?

If A and B are two non empty sets and A is proper subset of B. If n(A) =5, then minimum possible value of n(A symmetric difference B) is?

The number of line segments in the figure given below is ____.

Simplify the following fraction to its lowest form.

Question 31(i)An integer is chosen between 0 and 100. What is the probability that it is divisible by 7?

A letter is chosen from the word 'PERIMETER'. What is the probability that the letter chosen is 'E'?

Study the graph carefully to answer the questions that follow. Number of people working in Bamboo industries from different villages and the ratio of men to women working: Q72. What is the number of women working in Bamboo industries from village E?

What is the value of 5.8 + 7.3?

The given pie chart shows marks scored by a student in different subjects in an examination.If the total marks are 1000, then the difference of marks scored in mathematics and physics is

(xy2+2z)×2xy=

3 Numbersare chosen from 1 to 30. Find the probability that they are not consecutive

How I should do a birthday trick?

Select the odd one out.

A table marked at Rs. 15000 is available for Rs. 14400. What is the discount %?

Find the remaining angles in the following figure.(a) (b) (c) (d)

The integrating factor of the differential equation dydx+y=1+yx is _____________________.

Let s be the sum p be the product and r be the sum of the reciprocals of three term of a gp then prove that p2 r3=s3

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

What is the expanded form of (a + b) (a − b).