19743 + Interview Questions in Mathematics Page 231 InterviewSolution

11501.	In a game, Ted has to earn coins. If he gets a gold coin, he gains 20 points, but if by mistake he gets a red coin, he loses 5 points. What is his total score if he gets 19 gold coins and 7 red coins?
Answer» In a game, Ted has to earn coins. If he gets a gold coin, he gains 20 points, but if by mistake he gets a red coin, he loses 5 points. What is his total score if he gets 19 gold coins and 7 red coins?

Discussion

11502.	Question 106Solve the following question:What is the least number that should be added to 6200 to make it a perfect square?
Answer» Question 106 Solve the following question: What is the least number that should be added to 6200 to make it a perfect square?

11502.

Question 106Solve the following question:What is the least number that should be added to 6200 to make it a perfect square?

Answer»

Question 106

Solve the following question:

What is the least number that should be added to 6200 to make it a perfect square?

Discussion

11503.	The object travels 16m in 4s and then another 16m in 2s. What is the average speed of the object?
Answer» The object travels 16m in 4s and then another 16m in 2s. What is the average speed of the object?

Discussion

11504.	if the ratio of two angles is 3:7 and sum of both angles is 80 degree then find both angles
Answer» if the ratio of two angles is 3:7 and sum of both angles is 80 degree then find both angles

Discussion

11505.	8.Show how \sqrt{}5 can be represented on the number line.
Answer» 8.Show how \sqrt{}5 can be represented on the number line.

Discussion

11506.	Question 8If in two right triangles, one of the acute angles of one triangle is equal to an acute of the other triangle. Can you say that two triangles will be similar? Why?
Answer» Question 8 If in two right triangles, one of the acute angles of one triangle is equal to an acute of the other triangle. Can you say that two triangles will be similar? Why?

Discussion

11507.	Q:- The square of any positive number is of the form- 1. 5q+2 2. 4q 3. 4q+1 4. Both 2 and
Answer» Q:- The square of any positive number is of the form- 1. 5q+2 2. 4q 3. 4q+1 4. Both 2 and

Discussion

11508.	If 319=PQR, calculate the value of the expression, Q(P+2)R−QPR
Answer» $If \frac{31}{9} = P \frac{Q}{R}, calculate the value of the expression, Q \frac{(P + 2)}{R} - Q \frac{P}{R}$

Discussion

11509.	If the cost of 25/4m of cloth is r 11375/8 then find the cost of 1m of cloth
Answer» If the cost of 25/4m of cloth is r 11375/8 then find the cost of 1m of cloth

Discussion

11510.	Find the product:(x – y − z) (x2 + y2 + z2 + xy – yz + xz)
Answer» Find the product: (x – y − z) (x² + y² + z² + xy – yz + xz)

Discussion

11511.	If ΔABC≅ΔPQR , then AB is equal to
Answer» If $Δ A B C ≅ Δ P Q R$ , then AB is equal to

Discussion

11512.	Match the following triangles with their respective areas.
Answer» Match the following triangles with their respective areas.

Discussion

11513.	4 men and 6 boys can finish a piece of work in 5 days, while 3 men and 4 boys can finish it in 7 days. Find the time taken by 1 man alone or that by 1 boy alone. .
Answer» 4 men and 6 boys can finish a piece of work in 5 days, while 3 men and 4 boys can finish it in 7 days. Find the time taken by 1 man alone or that by 1 boy alone. .

Discussion

11514.	In a pentagon ABCDE, AB is parallel to DC and ∠A:∠E:∠D=3:4:5. Find angle E.
Answer» In a pentagon ABCDE, AB is parallel to DC and $∠ A : ∠ E : ∠ D = 3 : 4 : 5.$ Find angle E.

Discussion

11515.	In a bank, principal increases continuously at the rate of 5% per year. An amount of Rs 1000 is deposited with this bank, how much will it worth after 10 years .
Answer» In a bank, principal increases continuously at the rate of 5% per year. An amount of Rs 1000 is deposited with this bank, how much will it worth after 10 years .

Discussion

11516.	In a equilateral triangle, all the three sides of the triangle are equal and each angle measuresdegree
Answer» In a equilateral triangle, all the three sides of the triangle are equal and each angle measuresdegree

Discussion

11517.	Prepare a grouped frequency table for the given histogram.
Answer» Prepare a grouped frequency table for the given histogram.

Discussion

11518.	The number 9a84 is divisible by 12. What are the possible values of `a'?
Answer» The number 9a84 is divisible by 12. What are the possible values of `a'?

Discussion

11519.	निम्नलिखितप्रश्न का उत्तरदीजिए −कविकिससे और क्याप्रार्थना कररहा है?
Answer» निम्नलिखित प्रश्न का उत्तर दीजिए − कवि किससे और क्या प्रार्थना कर रहा है?

11519.

निम्नलिखितप्रश्न का उत्तरदीजिए −कविकिससे और क्याप्रार्थना कररहा है?

Answer»

निम्नलिखित
प्रश्न का उत्तर
दीजिए −

कवि
किससे और क्या
प्रार्थना कर
रहा है?

Discussion

11520.	32. If 1 root of the equation ax2 + bx + c = 0 is 3 times the other, b2 : ac = ?
Answer» 32. If 1 root of the equation ax2 + bx + c = 0 is 3 times the other, b2 : ac = ?

Discussion

11521.

From the following transactions of Kamal, Guwahati, prepare Purchases Book and post into Ledger: 2019 April 1 Purchased from Videocon India Ltd., Kolkata; 30 Colour T.Vs ₹ 15,000 each, less Trade Discount 10% plus IGST 12%. Freight charges ₹ 2,000. April 15 Purchased from Sony India Ltd., Guwahati: 10 colour T.Vs ₹ 20,000 each less Trade Discount 10% plus CGST and SGST 6% each. April 20 Purchased from Music India Ltd., Delhi: 10 music systems ₹ 10,000 each less Trade Discount 15% plus IGST 12%. April 30 Purchased from Videocon India Ltd., Kolkata: 5 washing machines ₹ 15,000 each less Trade Discount 20%, plus IGST 12%, Freight charges ₹ 1,000.

Answer» From the following transactions of Kamal, Guwahati, prepare Purchases Book and post into Ledger:

2019
April 1	Purchased from Videocon India Ltd., Kolkata;
	30 Colour T.Vs ₹ 15,000 each, less Trade Discount 10% plus IGST 12%. Freight charges ₹ 2,000.
April 15	Purchased from Sony India Ltd., Guwahati:
	10 colour T.Vs ₹ 20,000 each less Trade Discount 10% plus CGST and SGST 6% each.
April 20	Purchased from Music India Ltd., Delhi:
	10 music systems ₹ 10,000 each less Trade Discount 15% plus IGST 12%.
April 30	Purchased from Videocon India Ltd., Kolkata:
	5 washing machines ₹ 15,000 each less Trade Discount 20%, plus IGST 12%, Freight charges ₹ 1,000.

Discussion

11522.	When terms have the same algebraic factor, they are called.
Answer» When terms have the same algebraic factor, they are called.

Discussion

11523.	Question 4(a) : Look at the figures and write ‘<’ or ‘>’ between the given pairs of fractions: 16□13
Answer» Question 4(a) : Look at the figures and write ‘<’ or ‘>’ between the given pairs of fractions: $\frac{1}{6} □ \frac{1}{3}$

11523.

Question 4(a) : Look at the figures and write ‘<’ or ‘>’ between the given pairs of fractions: 16□13

Answer»

Question 4(a) :

Look at the figures and write ‘<’ or ‘>’ between the given pairs of fractions:

$\frac{1}{6} □ \frac{1}{3}$

Discussion

11524.	Question 11 In standard form, the number 72105.4 is written as 7.21054×10n, where n is equal to (a) 2 (b) 3 (c) 4 (d) 5
Answer» Question 11 In standard form, the number 72105.4 is written as $7.21054 \times 10^{n},$ where $n$ is equal to (a) 2 (b) 3 (c) 4 (d) 5

11524.

Question 11 In standard form, the number 72105.4 is written as 7.21054×10n, where n is equal to (a) 2 (b) 3 (c) 4 (d) 5

Answer»

Question 11

In standard form, the number 72105.4 is written as $7.21054 \times 10^{n},$ where $n$ is equal to
(a) 2
(b) 3
(c) 4
(d) 5

Discussion

11525.	The simple interest on a certain sum for 3 year at 10%per annum is ₹829.50.Find the sum
Answer» The simple interest on a certain sum for 3 year at 10%per annum is ₹829.50.Find the sum

Discussion

11526.	18. A well of diameter 3m , is dug 14m deep. The earth taken out of it has been spread evenly all around it to a width of 4m , to form a embankment . Find the height of embankment ?
Answer» 18. A well of diameter 3m , is dug 14m deep. The earth taken out of it has been spread evenly all around it to a width of 4m , to form a embankment . Find the height of embankment ?

Discussion

11527.	Question 4The wheel of a motor cycle is of radius 35 cm. How many revolution per minute must the wheel make, so as to keep a speed of 66 km/h?
Answer» Question 4 The wheel of a motor cycle is of radius 35 cm. How many revolution per minute must the wheel make, so as to keep a speed of 66 km/h?

Discussion

11528.	What should be the value of 'a' if the value of 2x2+x−a equals to 5, when x = 0?
Answer» What should be the value of 'a' if the value of $2 x^{2} + x - a$ equals to 5, when x = 0?

Discussion

11529.	If A = [aij]2×2, where aij = i+j, if i≠ji2-2j, if i = j, then A-1 = ____________________.
Answer» If A = [a_ij]2×2, where a_ij = $\{\begin{cases} i + j, if i \neq j \\ i^{2} - 2 j, if i = j \end{cases}$ , then A^-1 = ____________________.

Discussion

11530.	Question 106 (ii)The students of Anuj's class sold posters to raise money. Anuj wanted to create a ratio for finding the amount of money her class would make for different numbers of posters sold. She knew they could raise Rs. 250 for every 60 posters sold Could Anu's class raise exactly Rs. 2000? if so how any posters would they need to sell? if not , why?
Answer» Question 106 (ii) The students of Anuj's class sold posters to raise money. Anuj wanted to create a ratio for finding the amount of money her class would make for different numbers of posters sold. She knew they could raise Rs. 250 for every 60 posters sold Could Anu's class raise exactly Rs. 2000? if so how any posters would they need to sell? if not , why?

11530.

Question 106 (ii)The students of Anuj's class sold posters to raise money. Anuj wanted to create a ratio for finding the amount of money her class would make for different numbers of posters sold. She knew they could raise Rs. 250 for every 60 posters sold Could Anu's class raise exactly Rs. 2000? if so how any posters would they need to sell? if not , why?

Answer»

Question 106 (ii)

The students of Anuj's class sold posters to raise money. Anuj wanted to create a ratio for finding the amount of money her class would make for different numbers of posters sold. She knew they could raise Rs. 250 for every 60 posters sold

Could Anu's class raise exactly Rs. 2000? if so how any posters would they need to sell? if not , why?

Discussion

11531.	If two three digit numbers are formed using the digits 1,5,6,7,8 and 9 without reputation, what is the maximum sum possible
Answer» If two three digit numbers are formed using the digits 1,5,6,7,8 and 9 without reputation, what is the maximum sum possible

Discussion

11532.	How to measure length with the help of vernier calliper?
Answer» How to measure length with the help of vernier calliper?

Discussion

11533.	Minimise Z=3x+ySubject to constraints:2x+y>=14x-5y>=4x,y>=0
Answer» Minimise Z=3x+y Subject to constraints: 2x+y>=14 x-5y>=4 x,y>=0

Discussion

11534.	Q78. IF L denoted × M denotes / P denotes + Q denotes -, then 16 P 24 M 8 Q 6 M 2 L 3 = ?
Answer» Q78. IF L denoted × M denotes / P denotes + Q denotes -, then 16 P 24 M 8 Q 6 M 2 L 3 = ?

11534.

Q78. IF L denoted × M denotes / P denotes + Q denotes -, then 16 P 24 M 8 Q 6 M 2 L 3 = ?

Answer»

Q78. IF L denoted ×

M denotes /

P denotes +

Q denotes -, then 16 P 24 M 8 Q 6 M 2 L 3 = ?

Discussion

11535.	Adjacent sides of a rectangle are 12cm and 8cm. The area of quadrilateral formed by joining the mid-points of a rectangle area=?a) 36cm^2b) 24cm^2c) 48cm^2d) 72cm^2
Answer» Adjacent sides of a rectangle are 12cm and 8cm. The area of quadrilateral formed by joining the mid-points of a rectangle area=? a) 36cm^2 b) 24cm^2 c) 48cm^2 d) 72cm^2

Discussion

11536.	The mean of marks scored by 100 students was found to be 40. Later it was discovered that a score of 53 was misread as 83 . Find the correct mean
Answer» The mean of marks scored by 100 students was found to be 40. Later it was discovered that a score of 53 was misread as 83 . Find the correct mean

Discussion

11537.	Ted bought a new TV set. He decided to keep it on a shelf in the corner of the room at some height so that the view gets better. If AB = AC = 48 inches, is the space enough for a TV with an area of the base (as isosceles right triangle shape) equal to 1200 square inches so that no part of the TV lies outside the shelf? If not, what should be the minimum length of AB?
Answer» Ted bought a new TV set. He decided to keep it on a shelf in the corner of the room at some height so that the view gets better. If AB = AC = 48 inches, is the space enough for a TV with an area of the base (as isosceles right triangle shape) equal to 1200 square inches so that no part of the TV lies outside the shelf? If not, what should be the minimum length of AB?

11537.

Ted bought a new TV set. He decided to keep it on a shelf in the corner of the room at some height so that the view gets better. If AB = AC = 48 inches, is the space enough for a TV with an area of the base (as isosceles right triangle shape) equal to 1200 square inches so that no part of the TV lies outside the shelf? If not, what should be the minimum length of AB?

Answer»

Ted bought a new TV set. He decided to keep it on a shelf in the corner of the room at some height so that the view gets better. If AB = AC = 48 inches, is the space enough for a TV with an area of the base (as isosceles right triangle shape) equal to 1200 square inches so that no part of the TV lies outside the shelf? If not, what should be the minimum length of AB?

Discussion

11538.	Question 112(i) Simplify 325+2311×2215
Answer» Question 112(i) Simplify $\frac{32}{5} + \frac{23}{11} \times \frac{22}{15}$

Discussion

11539.	Find the area of the figure below which is made of two equal trapeziums. Two parallel sides of a trapezium are of lengths 57 cm and 39 cm. The distance between the parallel sides AB and FC is 28 cm.
Answer» Find the area of the figure below which is made of two equal trapeziums. Two parallel sides of a trapezium are of lengths 57 cm and 39 cm. The distance between the parallel sides AB and FC is 28 cm.

11539.

Find the area of the figure below which is made of two equal trapeziums. Two parallel sides of a trapezium are of lengths 57 cm and 39 cm. The distance between the parallel sides AB and FC is 28 cm.

Answer»

Find the area of the figure below which is made of two equal trapeziums. Two parallel sides of a trapezium are of lengths 57 cm and 39 cm. The distance between the parallel sides AB and FC is 28 cm.

Discussion

11540.	Identify the number families (Integers, Whole numbers and Natural numbers) to which each of the given numbers belong? -43 98 0
Answer» Identify the number families (Integers, Whole numbers and Natural numbers) to which each of the given numbers belong? -43 98 0

Discussion

11541.	11. How to take signs while dividing polynomials
Answer» 11. How to take signs while dividing polynomials

Discussion

11542.	The high school parade band rehearses with either 7 or 10 members in each line. What is the least number of members that can be present in the marching band ?
Answer» The high school parade band rehearses with either 7 or 10 members in each line. What is the least number of members that can be present in the marching band ?

Discussion

11543.	Find the value of x for which the line AB will become parallel to line CD.
Answer» Find the value of x for which the line AB will become parallel to line CD.

11543.

Find the value of x for which the line AB will become parallel to line CD.

Answer»

Find the value of x for which the line AB will become parallel to line CD.

Discussion

11544.	Which of the following pairs of integers have 5 as a difference?(a) 10, 5 (b) − 10, − 5 (c) 15, − 20 (d) both (a) and (b)
Answer» Which of the following pairs of integers have 5 as a difference? (a) 10, 5 (b) − 10, − 5 (c) 15, − 20 (d) both (a) and (b)

Discussion

11545.	Question 81(iii)As part of his science project, Prithvi was supposed to record the temperature every hour one Saturday from 6 Am to midnight. At noon, he was taking lunch and forgot to record the temperature. At 8:00 PM, his favourite show came on and so forgot again. He recorded the data. So, collected on a graph sheet as shown below.Estimate the temperature at noon and 8 PM.
Answer» Question 81(iii) As part of his science project, Prithvi was supposed to record the temperature every hour one Saturday from 6 Am to midnight. At noon, he was taking lunch and forgot to record the temperature. At 8:00 PM, his favourite show came on and so forgot again. He recorded the data. So, collected on a graph sheet as shown below. Estimate the temperature at noon and 8 PM.

Discussion

11546.	The table below gives the flavours of ice-cream liked by children (boy and girls) of a society.Study the table and answer the following questions:How many children liked the chocolate flavour of ice-cream?
Answer» The table below gives the flavours of ice-cream liked by children (boy and girls) of a society. Study the table and answer the following questions: How many children liked the chocolate flavour of ice-cream?

Discussion

11547.	Question 106(i)The food table is given below information about 2 types of soup cream of tomato and sweet corn. Use these lables to answer the given questions. (all the serving are based on a 2000 calories diet.)Which can be measured more accurately the total amount of fat in cream of tomato soup or the total amount of fat in sweet corn soup ? Explain.
Answer» Question 106(i) The food table is given below information about 2 types of soup cream of tomato and sweet corn. Use these lables to answer the given questions. (all the serving are based on a 2000 calories diet.) Which can be measured more accurately the total amount of fat in cream of tomato soup or the total amount of fat in sweet corn soup ? Explain.

11547.

Question 106(i)The food table is given below information about 2 types of soup cream of tomato and sweet corn. Use these lables to answer the given questions. (all the serving are based on a 2000 calories diet.)Which can be measured more accurately the total amount of fat in cream of tomato soup or the total amount of fat in sweet corn soup ? Explain.

Answer»

Question 106(i)

The food table is given below information about 2 types of soup cream of tomato and sweet corn. Use these lables to answer the given questions. (all the serving are based on a 2000 calories diet.)

Which can be measured more accurately the total amount of fat in cream of tomato soup or the total amount of fat in sweet corn soup ? Explain.

Discussion

11548.	John bought a plane ticket for $150. How much does John pay overall if tax rate is 10%?
Answer» John bought a plane ticket for $150. How much does John pay overall if tax rate is 10%?

Discussion

11549.	Which is greater? 0.5 or 0.05
Answer» Which is greater? 0.5 or 0.05

Discussion

11550.

Fill inthe boxes with the correct symbol out of >, <, and = (i) (ii) (iii) (iv) (v) (vi) (vii)

Answer»

Fill in
the boxes with the correct symbol out of >, <, and =

(i) (ii) (iii)

(iv) (v) (vi)

(vii)

Discussion

Explore topic-wise InterviewSolutions in .

In a game, Ted has to earn coins. If he gets a gold coin, he gains 20 points, but if by mistake he gets a red coin, he loses 5 points. What is his total score if he gets 19 gold coins and 7 red coins?

Question 106Solve the following question:What is the least number that should be added to 6200 to make it a perfect square?

The object travels 16m in 4s and then another 16m in 2s. What is the average speed of the object?

if the ratio of two angles is 3:7 and sum of both angles is 80 degree then find both angles

8.Show how \sqrt{}5 can be represented on the number line.

Question 8If in two right triangles, one of the acute angles of one triangle is equal to an acute of the other triangle. Can you say that two triangles will be similar? Why?

Q:- The square of any positive number is of the form- 1. 5q+2 2. 4q 3. 4q+1 4. Both 2 and

If 319=PQR, calculate the value of the expression, Q(P+2)R−QPR

If the cost of 25/4m of cloth is r 11375/8 then find the cost of 1m of cloth

Find the product:(x – y − z) (x2 + y2 + z2 + xy – yz + xz)

If ΔABC≅ΔPQR , then AB is equal to

Match the following triangles with their respective areas.

4 men and 6 boys can finish a piece of work in 5 days, while 3 men and 4 boys can finish it in 7 days. Find the time taken by 1 man alone or that by 1 boy alone. .

In a pentagon ABCDE, AB is parallel to DC and ∠A:∠E:∠D=3:4:5. Find angle E.

In a bank, principal increases continuously at the rate of 5% per year. An amount of Rs 1000 is deposited with this bank, how much will it worth after 10 years .

In a equilateral triangle, all the three sides of the triangle are equal and each angle measuresdegree

Prepare a grouped frequency table for the given histogram.

The number 9a84 is divisible by 12. What are the possible values of `a'?

निम्नलिखितप्रश्न का उत्तरदीजिए −कविकिससे और क्याप्रार्थना कररहा है?

32. If 1 root of the equation ax2 + bx + c = 0 is 3 times the other, b2 : ac = ?

When terms have the same algebraic factor, they are called.

Question 4(a) : Look at the figures and write ‘&lt;’ or ‘&gt;’ between the given pairs of fractions: 16□13

Question 11 In standard form, the number 72105.4 is written as 7.21054×10n, where n is equal to (a) 2 (b) 3 (c) 4 (d) 5

The simple interest on a certain sum for 3 year at 10%per annum is ₹829.50.Find the sum

18. A well of diameter 3m , is dug 14m deep. The earth taken out of it has been spread evenly all around it to a width of 4m , to form a embankment . Find the height of embankment ?

Question 4The wheel of a motor cycle is of radius 35 cm. How many revolution per minute must the wheel make, so as to keep a speed of 66 km/h?

What should be the value of 'a' if the value of 2x2+x−a equals to 5, when x = 0?

If A = [aij]2×2, where aij = i+j, if i≠ji2-2j, if i = j, then A-1 = ____________________.

If two three digit numbers are formed using the digits 1,5,6,7,8 and 9 without reputation, what is the maximum sum possible

How to measure length with the help of vernier calliper?

Minimise Z=3x+ySubject to constraints:2x+y>=14x-5y>=4x,y>=0

Q78. IF L denoted × M denotes / P denotes + Q denotes -, then 16 P 24 M 8 Q 6 M 2 L 3 = ?

Adjacent sides of a rectangle are 12cm and 8cm. The area of quadrilateral formed by joining the mid-points of a rectangle area=?a) 36cm^2b) 24cm^2c) 48cm^2d) 72cm^2

The mean of marks scored by 100 students was found to be 40. Later it was discovered that a score of 53 was misread as 83 . Find the correct mean

Question 112(i) Simplify 325+2311×2215

Find the area of the figure below which is made of two equal trapeziums. Two parallel sides of a trapezium are of lengths 57 cm and 39 cm. The distance between the parallel sides AB and FC is 28 cm.

Identify the number families (Integers, Whole numbers and Natural numbers) to which each of the given numbers belong? -43 98 0

11. How to take signs while dividing polynomials

The high school parade band rehearses with either 7 or 10 members in each line. What is the least number of members that can be present in the marching band ?

Find the value of x for which the line AB will become parallel to line CD.

Which of the following pairs of integers have 5 as a difference?(a) 10, 5 (b) − 10, − 5 (c) 15, − 20 (d) both (a) and (b)

The table below gives the flavours of ice-cream liked by children (boy and girls) of a society.Study the table and answer the following questions:How many children liked the chocolate flavour of ice-cream?

John bought a plane ticket for $150. How much does John pay overall if tax rate is 10%?

Which is greater? 0.5 or 0.05

Fill inthe boxes with the correct symbol out of &gt;, &lt;, and = (i) (ii) (iii) (iv) (v) (vi) (vii)

Question 4(a) : Look at the figures and write ‘<’ or ‘>’ between the given pairs of fractions: 16□13

Fill inthe boxes with the correct symbol out of >, <, and = (i) (ii) (iii) (iv) (v) (vi) (vii)