25365 + Interview Questions in Mathematics Page 77 InterviewSolution

3801.	A regular hexagon has a side 8 cm.Find the area of hexagon.
Answer» A regular hexagon has a side 8 cm.Find the area of hexagon.

Discussion

3802.	Question 43Fill in the blanks to make the statements true.The cube of an odd number is always an ___ number.
Answer» Question 43 Fill in the blanks to make the statements true. The cube of an odd number is always an ___ number.

3802.

Question 43Fill in the blanks to make the statements true.The cube of an odd number is always an ___ number.

Answer»

Question 43

Fill in the blanks to make the statements true.

The cube of an odd number is always an ___ number.

Discussion

3803.	The following pie-diagram shows the expenditure incurred in the preparation of a book by a publisher, under various headsIf the total amount spent on publishing a book is Rs. 1200/- find the amount spent on printing 3 books.
Answer» The following pie-diagram shows the expenditure incurred in the preparation of a book by a publisher, under various heads If the total amount spent on publishing a book is Rs. 1200/- find the amount spent on printing 3 books.

3803.

The following pie-diagram shows the expenditure incurred in the preparation of a book by a publisher, under various headsIf the total amount spent on publishing a book is Rs. 1200/- find the amount spent on printing 3 books.

Answer»

The following pie-diagram shows the expenditure incurred in the preparation of a book by a publisher, under various heads

If the total amount spent on publishing a book is Rs. 1200/- find the amount spent on printing 3 books.

Discussion

3804.	Which of the following is the correct expansion of the given identity?(x+a)(x+b)
Answer» Which of the following is the correct expansion of the given identity? $(x + a) (x + b)$

Discussion

3805.	The square of 130000 ends with ______ number of zeroes.8
Answer» The square of 130000 ends with ______ number of zeroes. 8

Discussion

3806.	(x+2) (x+3) (x+8) (x+12) = 4x^2. Find the value of x.
Answer» (x+2) (x+3) (x+8) (x+12) = 4x^2. Find the value of x.

Discussion

3807.	40 workers working for 8 hours per day digs a hole of 1088 m3. If 45 workers work for 6 hours a day, then what volume of the hole they can dig in m3?918
Answer» 40 workers working for 8 hours per day digs a hole of 1088 $m^{3}$ . If 45 workers work for 6 hours a day, then what volume of the hole they can dig in $m^{3}$ ? 918

Discussion

3808.	Which of the following quadrilaterals has/have equal length of diagonals?i) Rhombusii) Rectangleiii) Squareiv) Kitev) Parallelogram
Answer» Which of the following quadrilaterals has/have equal length of diagonals? i) Rhombus ii) Rectangle iii) Square iv) Kite v) Parallelogram

3808.

Which of the following quadrilaterals has/have equal length of diagonals?i) Rhombusii) Rectangleiii) Squareiv) Kitev) Parallelogram

Answer»

Which of the following quadrilaterals has/have equal length of diagonals?

i) Rhombus

ii) Rectangle

iii) Square

iv) Kite

v) Parallelogram

Discussion

3809.	is 46656 a perfect cube?
Answer» is 46656 a perfect cube?

Discussion

3810.	If the product of two numbers is 21 and their difference is 4, then the ratio of the sum of their cubes to the difference of their cubes is:
Answer» If the product of two numbers is 21 and their difference is 4, then the ratio of the sum of their cubes to the difference of their cubes is:

Discussion

3811.

Enter the following transactions in the Journal of M/s Tripathi Bros. :- 2019 ₹ Jan. 6 Sold goods for cash 36,000 8 Sold goods to Hari 30,000 14 Received cash from Hari 18,000 26 Received Commission 750 27 Paid Salary to Gopal 1,200 28 Received cash from Hari 12,000 29 Withdrew cash from office for personal use 4,000 30 Wages paid 7,200 30 Bought Machinery for Cash 8,000

Answer» Enter the following transactions in the Journal of M/s Tripathi Bros. :-

2019		₹
Jan. 6	Sold goods for cash	36,000
8	Sold goods to Hari	30,000
14	Received cash from Hari	18,000
26	Received Commission	750
27	Paid Salary to Gopal	1,200
28	Received cash from Hari	12,000
29	Withdrew cash from office for personal use	4,000
30	Wages paid	7,200
30	Bought Machinery for Cash	8,000

Discussion

3812.	Evaluate the product without multiplying directly : 104×97.
Answer» Evaluate the product without multiplying directly : 104×97.

Discussion

3813.	{ (ii) If }^nP_{n-2}=60, then find the value of }n.}{ (iii) If }^nP_6=20×^nP_4, then find the value of }n.
Answer» { (ii) If }^nP_{n-2}=60, then find the value of }n.}{ (iii) If }^nP_6=20×^nP_4, then find the value of }n.

Discussion

3814.	Question 1(e)State whether the given expression is an equation or not.Give reason for your answer.Identify the variable from the given expression.5×4−8=2x
Answer» Question 1(e) State whether the given expression is an equation or not.Give reason for your answer.Identify the variable from the given expression. $5 \times 4 - 8 = 2 x$

3814.

Question 1(e)State whether the given expression is an equation or not.Give reason for your answer.Identify the variable from the given expression.5×4−8=2x

Answer»

Question 1(e)

State whether the given expression is an equation or not.Give reason for your answer.Identify the variable from the given expression.

$5 \times 4 - 8 = 2 x$

Discussion

3815.	4. If x=3+1÷2 then simplify 4x cube+2x square+8x+7
Answer» 4. If x=3+1÷2 then simplify 4x cube+2x square+8x+7

Discussion

3816.	Let .Find(i) , (ii)
Answer» Let . Find (i) , (ii)

3816.

Let .Find(i) , (ii)

Answer»

Let
.
Find

(i) , (ii)

Discussion

3817.	Répondez aux questions suivantes.1. Qu'est-ce que c'est la SNCF?2. Pourquoi on appelle France
Answer» Répondez aux questions suivantes. 1. Qu'est-ce que c'est la SNCF? 2. Pourquoi on appelle France <>?

Discussion

3818.	There are 5 commerce students and 3 science students. In how many ways can they be placed in a row such that 2 science students do not sit together.
Answer» There are 5 commerce students and 3 science students. In how many ways can they be placed in a row such that 2 science students do not sit together.

Discussion

3819.	Which of the following is a terminating decimal number?
Answer» Which of the following is a terminating decimal number?

Discussion

3820.	नीचे दिए उदाहरण के अनुसार निम्नलिखित शब्द-युग्मों का वाक्य में प्रयोग कीजिए − उदाहरण : हमारे पास एक वॉकी-टॉकी था। टेढ़ी-मेढ़ी गहरे-चौड़े आस-पास हक्का-बक्का इधर-उधर लंबे-चौड़े
Answer» नीचे दिए उदाहरण के अनुसार निम्नलिखित शब्द-युग्मों का वाक्य में प्रयोग कीजिए − उदाहरण : हमारे पास एक वॉकी-टॉकी था। टेढ़ी-मेढ़ी गहरे-चौड़े आस-पास हक्का-बक्का इधर-उधर लंबे-चौड़े

3820.

नीचे दिए उदाहरण के अनुसार निम्नलिखित शब्द-युग्मों का वाक्य में प्रयोग कीजिए − उदाहरण : हमारे पास एक वॉकी-टॉकी था। टेढ़ी-मेढ़ी गहरे-चौड़े आस-पास हक्का-बक्का इधर-उधर लंबे-चौड़े

Answer»

नीचे
दिए उदाहरण के
अनुसार निम्नलिखित
शब्द-युग्मों
का वाक्य में
प्रयोग कीजिए
−

उदाहरण
: हमारे
पास एक वॉकी-टॉकी
था।

टेढ़ी-मेढ़ी

गहरे-चौड़े

आस-पास

हक्का-बक्का

इधर-उधर

लंबे-चौड़े

Discussion

3821.	Expand : (i) (2a+b)3 (ii) (a−2b)3 (iii) (3x−2y)3 (iv) (x+5y)3 (v) (a+1a)3 (vi) (2a−12a)3
Answer» Expand : (i) $(2 a + b)^{3}$ (ii) $(a - 2 b)^{3}$ (iii) $(3 x - 2 y)^{3}$ (iv) $(x + 5 y)^{3}$ (v) ${(a + \frac{1}{a})}^{3}$ (vi) ${(2 a - \frac{1}{2 a})}^{3}$

3821.

Expand : (i) (2a+b)3 (ii) (a−2b)3 (iii) (3x−2y)3 (iv) (x+5y)3 (v) (a+1a)3 (vi) (2a−12a)3

Answer»

Expand :

(i) $(2 a + b)^{3}$

(ii) $(a - 2 b)^{3}$

(iii) $(3 x - 2 y)^{3}$

(iv) $(x + 5 y)^{3}$

(v) ${(a + \frac{1}{a})}^{3}$

(vi) ${(2 a - \frac{1}{2 a})}^{3}$

Discussion

3822.	Question 130The product of two rational numbers is - 7. If one of the number is - 5, find the other?
Answer» Question 130 The product of two rational numbers is - 7. If one of the number is - 5, find the other?

Discussion

3823.	Chris bought a pen for ₹120. For how much should he sell it in order to make a profit of 25%?
Answer» Chris bought a pen for ₹120. For how much should he sell it in order to make a profit of 25%?

Discussion

3824.	Question 104State whether the statements are True or False.A polygon is regular if all of its sides are equal.
Answer» Question 104 State whether the statements are True or False. A polygon is regular if all of its sides are equal.

Discussion

3825.	Find the area of △ABC, if BC = 10 cm and AD = 6 cm.
Answer» Find the area of $△$ ABC, if BC = 10 cm and AD = 6 cm.

Discussion

3826.	Find the smallest number by which 180 must be multiplied so that it becomes a perfect square. Also, find the square root of the perfect square so obtained.
Answer» Find the smallest number by which 180 must be multiplied so that it becomes a perfect square. Also, find the square root of the perfect square so obtained.

Discussion

3827.	What is the value of x if 4x−7=3x+5?
Answer» What is the value of $x$ if $4 x - 7 = 3 x + 5$ ?

Discussion

3828.	7.(iii)Prove that the triangle formed by joining the points (3,5,0) ,(2,3,-3) ,(6,1,-3) is a right angled triangle.
Answer» 7.(iii)Prove that the triangle formed by joining the points (3,5,0) ,(2,3,-3) ,(6,1,-3) is a right angled triangle.

Discussion

3829.	For each of the following, find the least number that must be subtracted so that the resulting number is a perfect square. (i) 796 (ii) 1886 (iii) 23497
Answer» For each of the following, find the least number that must be subtracted so that the resulting number is a perfect square. (i) 796 (ii) 1886 (iii) 23497

Discussion

3830.	Which of the following represents (7 thousands +7 hundreds + 9 ones) ?
Answer» Which of the following represents (7 thousands +7 hundreds + 9 ones) ?

Discussion

3831.	Arjun sits on the seat which is shaded in the picture. Which of the options give the most accurate location of Arjun in the class?
Answer» Arjun sits on the seat which is shaded in the picture. Which of the options give the most accurate location of Arjun in the class?

3831.

Arjun sits on the seat which is shaded in the picture. Which of the options give the most accurate location of Arjun in the class?

Answer»

Arjun sits on the seat which is shaded in the picture. Which of the options give the most accurate location of Arjun in the class?

Discussion

3832.	What is the nearest square number of √15, √46 and √250?
Answer» What is the nearest square number of √15, √46 and √250?

Discussion

3833.	Two AP's have the same common difference. The difference between their 100th terms is 100, what is the difference between their 1000th terms?
Answer» Two AP's have the same common difference. The difference between their $100^{t h}$ terms is 100, what is the difference between their $1000^{t h}$ terms?

Discussion

3834.	How many silver coins, 1.75 cm in diameter and of thickness 2 mm, must be melted to form a cuboid of dimensions 5.5cm×10cm×3.5cm?
Answer» How many silver coins, 1.75 cm in diameter and of thickness 2 mm, must be melted to form a cuboid of dimensions $5.5 c m \times 10 c m \times 3.5 c m ?$

Discussion

3835.	Babita bought 160 kg of mangoes at ₹ 48 per kg. She sold 70 % of the mangoes at ₹ 70 per kg and the remaining mangoes at ₹ 40 per kg. Find Babita's gain or loss percent on the whole dealing.
Answer» Babita bought 160 kg of mangoes at ₹ 48 per kg. She sold 70 $%$ of the mangoes at ₹ 70 per kg and the remaining mangoes at ₹ 40 per kg. Find Babita's gain or loss percent on the whole dealing.

Discussion

3836.	4 of 10 points are collinear.How many quadrangles will they make ??
Answer» 4 of 10 points are collinear.How many quadrangles will they make ??

Discussion

3837.	Mark the correct alternative in the following question:The ages of Ravish and Shikha are in the ratio 3 : 8. Six years hence, their ages will be in the ratio 4 : 9. The present age of Ravish is(a) 18 years (b) 15 years (c) 12 years (d) 21 years
Answer» Mark the correct alternative in the following question: The ages of Ravish and Shikha are in the ratio 3 : 8. Six years hence, their ages will be in the ratio 4 : 9. The present age of Ravish is (a) 18 years (b) 15 years (c) 12 years (d) 21 years

Discussion

3838.	(i) Express 81 as the sum of 9 odd numbers. (ii) Express 100 as the sum of 10 odd numbers
Answer» (i) Express 81 as the sum of 9 odd numbers. (ii) Express 100 as the sum of 10 odd numbers

Discussion

3839.	Find a number which when multiplied by 7 is as much above 132 as it was originally below it.
Answer» Find a number which when multiplied by 7 is as much above 132 as it was originally below it.

Discussion

3840.	13. Long division of polinomial x-3x-3 ÷ x-2
Answer» 13. Long division of polinomial x-3x-3 ÷ x-2

Discussion

3841.	Construct a quadrilateral PQRS where PQ = 4 cm, QR = 6 cm, RS = 5 cm, PS = 5.5 cm, and PR = 7 cm.
Answer» Construct a quadrilateral PQRS where PQ = 4 cm, QR = 6 cm, RS = 5 cm, PS = 5.5 cm, and PR = 7 cm.

Discussion

3842.	The dimensions of a room are 12.5 m by 9 m by 7 m. There are 2 doors and 4 windows in the room; each door measures 2.5 m by 1.2 m and each window 1.5 m by 1 m. Find the cost of painting the walls at Rs 3.50 per square metre.
Answer» The dimensions of a room are 12.5 m by 9 m by 7 m. There are 2 doors and 4 windows in the room; each door measures 2.5 m by 1.2 m and each window 1.5 m by 1 m. Find the cost of painting the walls at Rs 3.50 per square metre.

Discussion

3843.	Select all the irrational numbers
Answer» Select all the irrational numbers

Discussion

3844.	A water tank is 1.4 m long, 1m wide and 0.7m deep. Find the volume of the tank in litres.
Answer» A water tank is 1.4 m long, 1m wide and 0.7m deep. Find the volume of the tank in litres.

Discussion

3845.	Find the possible value(s) of the expression: √2+√2+√2+...
Answer» Find the possible value(s) of the expression: $\sqrt{2 + \sqrt{2 + \sqrt{2 + . . .}}}$

Discussion

3846.	19. The parallel sides of a Trapezium are 40 cm and 70 cm. if the non parallel sides are equal is being 25 centimetre, find the area of a Trapezium
Answer» 19. The parallel sides of a Trapezium are 40 cm and 70 cm. if the non parallel sides are equal is being 25 centimetre, find the area of a Trapezium

Discussion

3847.	(x−1)2 =_____
Answer» $(x - 1)^{2}$ =_____

Discussion

3848.	Question 4(iv)Divide as directed20(y+4)(y2+5y+3)÷5(y+4)
Answer» Question 4(iv) Divide as directed $20 (y + 4) (y^{2} + 5 y + 3) \div 5 (y + 4)$

Discussion

3849.	Fill in the blanks with appropriate answers:
Answer» Fill in the blanks with appropriate answers:

3849.

Fill in the blanks with appropriate answers:

Answer»

Fill in the blanks with appropriate answers:

Discussion

3850.

The price of a book is 4 rupees more than the price of a pen; and the price of a pencil is 2 rupees less than the price of this pen. A man bought 5 books, 2 pens and 3 pencils and paid 54 rupees for the lot. What is the price of each?

Answer»

The price of a book is 4 rupees more than the price of a pen; and the price of a pencil is 2 rupees less than the price of this pen. A man bought 5 books, 2 pens and 3 pencils and paid 54 rupees for the lot. What is the price of each?

Discussion

Explore topic-wise InterviewSolutions in .

A regular hexagon has a side 8 cm.Find the area of hexagon.

Question 43Fill in the blanks to make the statements true.The cube of an odd number is always an ___ number.

The following pie-diagram shows the expenditure incurred in the preparation of a book by a publisher, under various headsIf the total amount spent on publishing a book is Rs. 1200/- find the amount spent on printing 3 books.

Which of the following is the correct expansion of the given identity?(x+a)(x+b)

The square of 130000 ends with ______ number of zeroes.8

(x+2) (x+3) (x+8) (x+12) = 4x^2. Find the value of x.

40 workers working for 8 hours per day digs a hole of 1088 m3. If 45 workers work for 6 hours a day, then what volume of the hole they can dig in m3?918

Which of the following quadrilaterals has/have equal length of diagonals?i) Rhombusii) Rectangleiii) Squareiv) Kitev) Parallelogram

is 46656 a perfect cube?

If the product of two numbers is 21 and their difference is 4, then the ratio of the sum of their cubes to the difference of their cubes is:

Evaluate the product without multiplying directly : 104×97.

{ (ii) If }^nP_{n-2}=60, then find the value of }n.}{ (iii) If }^nP_6=20×^nP_4, then find the value of }n.

Question 1(e)State whether the given expression is an equation or not.Give reason for your answer.Identify the variable from the given expression.5×4−8=2x

4. If x=3+1÷2 then simplify 4x cube+2x square+8x+7

Let .Find(i) , (ii)

Répondez aux questions suivantes.1. Qu'est-ce que c'est la SNCF?2. Pourquoi on appelle France

There are 5 commerce students and 3 science students. In how many ways can they be placed in a row such that 2 science students do not sit together.

Which of the following is a terminating decimal number?

Expand : (i) (2a+b)3 (ii) (a−2b)3 (iii) (3x−2y)3 (iv) (x+5y)3 (v) (a+1a)3 (vi) (2a−12a)3

Question 130The product of two rational numbers is - 7. If one of the number is - 5, find the other?

Chris bought a pen for ₹120. For how much should he sell it in order to make a profit of 25%?

Question 104State whether the statements are True or False.A polygon is regular if all of its sides are equal.

Find the area of △ABC, if BC = 10 cm and AD = 6 cm.

Find the smallest number by which 180 must be multiplied so that it becomes a perfect square. Also, find the square root of the perfect square so obtained.

What is the value of x if 4x−7=3x+5?

7.(iii)Prove that the triangle formed by joining the points (3,5,0) ,(2,3,-3) ,(6,1,-3) is a right angled triangle.

For each of the following, find the least number that must be subtracted so that the resulting number is a perfect square. (i) 796 (ii) 1886 (iii) 23497

Which of the following represents (7 thousands +7 hundreds + 9 ones) ?

Arjun sits on the seat which is shaded in the picture. Which of the options give the most accurate location of Arjun in the class?

What is the nearest square number of √15, √46 and √250?

Two AP's have the same common difference. The difference between their 100th terms is 100, what is the difference between their 1000th terms?

How many silver coins, 1.75 cm in diameter and of thickness 2 mm, must be melted to form a cuboid of dimensions 5.5cm×10cm×3.5cm?

Babita bought 160 kg of mangoes at ₹ 48 per kg. She sold 70 % of the mangoes at ₹ 70 per kg and the remaining mangoes at ₹ 40 per kg. Find Babita's gain or loss percent on the whole dealing.

4 of 10 points are collinear.How many quadrangles will they make ??

Mark the correct alternative in the following question:The ages of Ravish and Shikha are in the ratio 3 : 8. Six years hence, their ages will be in the ratio 4 : 9. The present age of Ravish is(a) 18 years (b) 15 years (c) 12 years (d) 21 years

(i) Express 81 as the sum of 9 odd numbers. (ii) Express 100 as the sum of 10 odd numbers

Find a number which when multiplied by 7 is as much above 132 as it was originally below it.

13. Long division of polinomial x-3x-3 ÷ x-2

Construct a quadrilateral PQRS where PQ = 4 cm, QR = 6 cm, RS = 5 cm, PS = 5.5 cm, and PR = 7 cm.

The dimensions of a room are 12.5 m by 9 m by 7 m. There are 2 doors and 4 windows in the room; each door measures 2.5 m by 1.2 m and each window 1.5 m by 1 m. Find the cost of painting the walls at Rs 3.50 per square metre.

Select all the irrational numbers

A water tank is 1.4 m long, 1m wide and 0.7m deep. Find the volume of the tank in litres.

Find the possible value(s) of the expression: √2+√2+√2+...

19. The parallel sides of a Trapezium are 40 cm and 70 cm. if the non parallel sides are equal is being 25 centimetre, find the area of a Trapezium

(x−1)2 =_____

Question 4(iv)Divide as directed20(y+4)(y2+5y+3)÷5(y+4)

Fill in the blanks with appropriate answers:

The price of a book is 4 rupees more than the price of a pen; and the price of a pencil is 2 rupees less than the price of this pen. A man bought 5 books, 2 pens and 3 pencils and paid 54 rupees for the lot. What is the price of each?