19743 + Interview Questions in Mathematics Page 298 InterviewSolution

14851.	In a survey of 300 android mobile users, who make video calls, 75 people said they use viber, 45 use skype and 90 people use both. The number of persons who use neither viber nor skype is __.
Answer» In a survey of 300 android mobile users, who make video calls, 75 people said they use viber, 45 use skype and 90 people use both. The number of persons who use neither viber nor skype is __.

Discussion

14852.	If each angle of the polygon is less than 180∘, then it is known as
Answer» If each angle of the polygon is less than $180^{\circ}$ , then it is known as

Discussion

14853.	The number of edges a pentagonal pyramid has is ___
Answer» The number of edges a pentagonal pyramid has is ___

Discussion

14854.	Question 9 A ΔABC is right angled at A. L is a point on BC such that AL ⊥ BC. Prove that ∠BAL=∠ACB.
Answer» Question 9 A $Δ A B C$ is right angled at A. L is a point on BC such that AL $⊥$ BC. Prove that $∠ B A L = ∠ A C B$ .

Discussion

14855.	Find the angle between the hour hand and minute hand when the clock shows 2 p.m.
Answer» Find the angle between the hour hand and minute hand when the clock shows 2 p.m.

Discussion

14856.	What is the difference between the number of mangoes sold on Sunday and number of custard apples sold on Wednesday?
Answer» What is the difference between the number of mangoes sold on Sunday and number of custard apples sold on Wednesday?

14856.

What is the difference between the number of mangoes sold on Sunday and number of custard apples sold on Wednesday?

Answer»

What is the difference between the number of mangoes sold on Sunday and number of custard apples sold on Wednesday?

Discussion

14857.	What is 29 of 45?
Answer» What is $\frac{2}{9}$ of $45$ ?

Discussion

14858.	The area of a triangular shaped field is 24 square meter and it has a height of 6 m. Find the base length of the field.
Answer» The area of a triangular shaped field is 24 square meter and it has a height of 6 m. Find the base length of the field.

Discussion

14859.	According to Pythagoras property: If in a right angled triangle, perpendicular, base and hypotaneus are a, b and c respectively, then which of the options is true?
Answer» According to Pythagoras property: If in a right angled triangle, perpendicular, base and hypotaneus are a, b and c respectively, then which of the options is true?

14859.

According to Pythagoras property: If in a right angled triangle, perpendicular, base and hypotaneus are a, b and c respectively, then which of the options is true?

Answer»

According to Pythagoras property:

If in a right angled triangle, perpendicular, base and hypotaneus are a, b and c respectively, then which of the options is true?

Discussion

14860.	Solve √2x2+x+√2=0
Answer» Solve $\sqrt{2} x^{2} + x + \sqrt{2} = 0$

14860.

Solve √2x2+x+√2=0

Answer»

Solve

$\sqrt{2} x^{2} + x + \sqrt{2} = 0$

Discussion

14861.	Write down a pair of integers whose: a) Sum is -8
Answer» Write down a pair of integers whose: a) Sum is -8

14861.

Write down a pair of integers whose: a) Sum is -8

Answer»

Write down a pair of integers whose:

a) Sum is -8

Discussion

14862.	Two adjacent sides of a rectangle are 6x2+4y2+2xy and x2−2x+4xy. Find its perimeter?
Answer» Two adjacent sides of a rectangle are $6 x^{2} + 4 y^{2} + 2 x y a n d x^{2} - 2 x + 4 x y$ . Find its perimeter?

Discussion

14863.	The factors of a2+b−ab−a are :
Answer» The factors of $a^{2} + b - a b - a$ are :

Discussion

14864.	Find the value using suitable property. i) 8 × 53 × (-125) ii) (-47) × 102 iii) 4574 x 99 - ( -4574) iv) 2369x (-487) – 1369 x (-487) v) 25 × 15 × 4 × 6
Answer» Find the value using suitable property. i) 8 × 53 × (-125) ii) (-47) × 102 iii) 4574 x 99 - ( -4574) iv) 2369x (-487) – 1369 x (-487) v) 25 × 15 × 4 × 6

Discussion

14865.	Dia sold her dress for ₹2500 with a profit of ₹500. She made a profit of ___ % on this sale.25
Answer» Dia sold her dress for ₹2500 with a profit of ₹500. She made a profit of ___ % on this sale. 25

Discussion

14866.	Calculate the area of a rectangular park whose length is 1525 m and breadth is 503 m.
Answer» Calculate the area of a rectangular park whose length is $\frac{152}{5} m$ and breadth is $\frac{50}{3} m .$

Discussion

14867.	If certain figures are equally balanced in proportion, then they are ___ .
Answer» If certain figures are equally balanced in proportion, then they are ___ .

Discussion

14868.	Observe the given bar graph and tap on the bar corresponding to the highest scorer.
Answer» Observe the given bar graph and tap on the bar corresponding to the highest scorer.

Discussion

14869.	The product of two rational numbers is -2.If one of them is 47,find the other.
Answer» $The product of two rational numbers is -2. If one of them is \frac{4}{7}, find the other.$

Discussion

14870.	Question 55 Fill in the blanks to make the statement true. An angle is 45∘, its complementary angle will be ___.
Answer» Question 55 Fill in the blanks to make the statement true. An angle is $45^{\circ}$ , its complementary angle will be ___.

14870.

Question 55 Fill in the blanks to make the statement true. An angle is 45∘, its complementary angle will be ___.

Answer»

Question 55

Fill in the blanks to make the statement true.

An angle is $45^{\circ}$ , its complementary angle will be ___.

Discussion

14871.	What is speed or average speed please give an answer in a easy way
Answer» What is speed or average speed please give an answer in a easy way

Discussion

14872.	What is the volume of an utensil whose density and mass are 50 g/cm3 and 2000 g respectively?
Answer» What is the volume of an utensil whose density and mass are $50 g / c m^{3}$ and $2000 g$ respectively?

Discussion

14873.	A square park of side 7 m has to be paved with bricks. If the cost of laying bricks is ₹10/m2, then the cost of laying the bricks is ___.
Answer» A square park of side 7 m has to be paved with bricks. If the cost of laying bricks is ₹ $10 / m^{2}$ , then the cost of laying the bricks is ___.

Discussion

14874.	If the expanded form of a number is 2 x 104 + 3 x 102 + 5 x 101 + 7, then the number is
Answer» If the expanded form of a number is 2 x 10⁴ + 3 x 10² + 5 x 10¹ + 7, then the number is

Discussion

14875.	A carpenter makes a new table in 5 days, working 6 hours a day. In order to make the same table in 3 days, how many hours per day must he work?
Answer» A carpenter makes a new table in 5 days, working 6 hours a day. In order to make the same table in 3 days, how many hours per day must he work?

Discussion

14876.	If in the given parallelogram AE = CF = 16 cm and BD = 28 cm, then what is its area?
Answer» If in the given parallelogram AE = CF = 16 cm and BD = 28 cm, then what is its area?

Discussion

14877.	Question 66 (h) Find the value of the given polynomial at a = -2 and b = 3. a2+b2−ab−b2−a2
Answer» Question 66 (h) Find the value of the given polynomial at a = -2 and b = 3. $a^{2} + b^{2} - a b - b^{2} - a^{2}$

14877.

Question 66 (h) Find the value of the given polynomial at a = -2 and b = 3. a2+b2−ab−b2−a2

Answer»

Question 66 (h)

Find the value of the given polynomial at a = -2 and b = 3.

$a^{2} + b^{2} - a b - b^{2} - a^{2}$

Discussion

14878.	A number when multiplied by 4 exceeds itself by 45. Find the number.
Answer» A number when multiplied by 4 exceeds itself by 45. Find the number.

Discussion

14879.	Question 44 If D is the mid-point of side BC in ΔABC, where AB = AC, then ∠ADC is a) 60∘ b) 45∘ c) 120∘ d) 90∘
Answer» Question 44 If D is the mid-point of side BC in $Δ A B C$ , where AB = AC, then $∠ A D C$ is a) $60^{\circ}$ b) $45^{\circ}$ c) $120^{\circ}$ d) $90^{\circ}$

14879.

Question 44 If D is the mid-point of side BC in ΔABC, where AB = AC, then ∠ADC is a) 60∘ b) 45∘ c) 120∘ d) 90∘

Answer»

Question 44

If D is the mid-point of side BC in $Δ A B C$ , where AB = AC, then $∠ A D C$ is

a) $60^{\circ}$
b) $45^{\circ}$
c) $120^{\circ}$
d) $90^{\circ}$

Discussion

14880.	Question 88 State whether the statement is True or False. Rotation turns an object about a fixed point which is known as the centre of rotation.
Answer» Question 88 State whether the statement is True or False. Rotation turns an object about a fixed point which is known as the centre of rotation.

Discussion

14881.	How to find median in data handling?
Answer» How to find median in data handling?

Discussion

14882.	The sides of a right angled triangle are 5x, 4x and 3x units respectively. If the perimeter is 36 units, what is x?
Answer» The sides of a right angled triangle are $5 x, 4 x$ and $3 x$ units respectively. If the perimeter is $36$ units, what is $x ?$

Discussion

14883.	Penny gives a box to each of her four friends which has 3 action figures inside it. How many action figures are there in total ?
Answer» Penny gives a box to each of her four friends which has $3$ action figures inside it. How many action figures are there in total ?

Discussion

14884.	If an amount of Rs. 1,42,136 is distributed equally amongst 163 persons, how much amount would each person get ?
Answer» If an amount of Rs. 1,42,136 is distributed equally amongst 163 persons, how much amount would each person get ?

Discussion

14885.	Choose the images with the order of rotational symmetry as 4.
Answer» Choose the images with the order of rotational symmetry as 4.

Discussion

14886.	I) can a triangle have all angles less than 60 degree explain. II) can a triangle have all angles equal to 60 degree explain.
Answer» I) can a triangle have all angles less than 60 degree explain. II) can a triangle have all angles equal to 60 degree explain.

14886.

I) can a triangle have all angles less than 60 degree explain. II) can a triangle have all angles equal to 60 degree explain.

Answer»

I) can a triangle have all angles less than 60 degree explain.

II) can a triangle have all angles equal to 60 degree explain.

Discussion

14887.	Given a = 6 + √3 ⇒ (1/a) = 1 / (6 + √3) Multiply and divide by (6 − √3) ⇒ (1/a) = (6− √3) / [(6 + √3)(6 − √3)] ⇒ (1/a) = (6 − √3) / [36 − 3] ⇒ (1/a) = (6− √3)/33 ∴ a - (1/a) = (6 + √3) -(6 − √3)/33 = [33(6 + √3) - (6 - √3)]/33 = [326 + 34√3]/33 = [192 + 34√3]/33 Answer : [192 + 34√3]/33 Why does 1/a come above
Answer» Given a = 6 + √3 ⇒ (1/a) = 1 / (6 + √3) Multiply and divide by (6 − √3) ⇒ (1/a) = (6− √3) / [(6 + √3)(6 − √3)] ⇒ (1/a) = (6 − √3) / [36 − 3] ⇒ (1/a) = (6− √3)/33 ∴ a - (1/a) = (6 + √3) -(6 − √3)/33 = [33(6 + √3) - (6 - √3)]/33 = [326 + 34√3]/33 = [192 + 34√3]/33 Answer : [192 + 34√3]/33 Why does 1/a come above

14887.

Given a = 6 + √3 ⇒ (1/a) = 1 / (6 + √3) Multiply and divide by (6 − √3) ⇒ (1/a) = (6− √3) / [(6 + √3)(6 − √3)] ⇒ (1/a) = (6 − √3) / [36 − 3] ⇒ (1/a) = (6− √3)/33 ∴ a - (1/a) = (6 + √3) -(6 − √3)/33 = [33(6 + √3) - (6 - √3)]/33 = [326 + 34√3]/33 = [192 + 34√3]/33 Answer : [192 + 34√3]/33 Why does 1/a come above

Answer»

Given a = 6 + √3
⇒ (1/a) = 1 / (6 + √3)
Multiply and divide by (6 − √3)
⇒ (1/a) = (6− √3) / [(6 + √3)(6 − √3)]
⇒ (1/a) = (6 − √3) / [36 − 3]
⇒ (1/a) = (6− √3)/33
∴ a - (1/a) = (6 + √3) -(6 − √3)/33
= [33(6 + √3) - (6 - √3)]/33
= [32*6 + 34*√3]/33
= [192 + 34√3]/33

Answer : [192 + 34√3]/33

Why does 1/a come above

Discussion

14888.	Expansion of (a+b)2 is:
Answer» Expansion of $(a + b)^{2}$ is:

Discussion

14889.	The sum of two numbers, one of which is 23 times the other, is 50. Find two numbers.
Answer» The sum of two numbers, one of which is $\frac{2}{3}$ times the other, is 50. Find two numbers.

Discussion

14890.	A number is divided into two parts, such that one part is 20 more than the other. If the two parts are in the ratio 7 : 3, then find the number and the two parts.
Answer» A number is divided into two parts, such that one part is 20 more than the other. If the two parts are in the ratio 7 : 3, then find the number and the two parts.

Discussion

14891.	Question 77(i) Study the double bar graphs given below and answer the following questions: Which sport is liked the most by class VIII students?
Answer» Question 77(i) Study the double bar graphs given below and answer the following questions: Which sport is liked the most by class VIII students?

Discussion

14892.	A hall is in the shape of a parallelogram. One of the parallel walls measures 8 m. The perpendicular distance corresponding to that wall is 1.75 times the length of this wall. If the cost of carpeting the hall is ₹2 per m2 , find the total cost of carpeting the hall.
Answer» A hall is in the shape of a parallelogram. One of the parallel walls measures 8 m. The perpendicular distance corresponding to that wall is 1.75 times the length of this wall. If the cost of carpeting the hall is ₹2 per $m^{2}$ , find the total cost of carpeting the hall.

Discussion

14893.	Question 26 The equivalent of 57 whose numerator is 45, is ___.
Answer» Question 26 The equivalent of $\frac{5}{7}$ whose numerator is 45, is ___.

Discussion

14894.	Question 1 A triangle can be constructed by taking its sides as a) 1.8 cm, 2.6 cm, 4.4 cm b) 2 cm, 3 cm, 4 cm c) 2.4 cm, 2.4 cm, 6.4 cm d) 3.2 cm, 2.3 cm, 5.5 cm
Answer» Question 1 A triangle can be constructed by taking its sides as a) 1.8 cm, 2.6 cm, 4.4 cm b) 2 cm, 3 cm, 4 cm c) 2.4 cm, 2.4 cm, 6.4 cm d) 3.2 cm, 2.3 cm, 5.5 cm

Discussion

14895.	In a △ABC, perpendicular AD from A on BC meets at D. If BD=8 cm, DC=2 cm and AD=4 cm, then:
Answer» In a $△ A B C$ , perpendicular $A D$ from $A$ on $B C$ meets at $D$ . If $B D = 8 cm, D C = 2 cm$ and $A D = 4 cm$ , then:

Discussion

14896.	The angle is 5 times its supplement.Find the angle.Answer fast please.I am submiting this question second time.
Answer» The angle is 5 times its supplement.Find the angle.Answer fast please.I am submiting this question second time.

Discussion

14897.	Question 22 Which power of 8 is equal to 26? (a) 3 (b) 2 (c) 1 (d) 4
Answer» Question 22 Which power of 8 is equal to $2^{6}$ ? (a) 3 (b) 2 (c) 1 (d) 4

14897.

Question 22 Which power of 8 is equal to 26? (a) 3 (b) 2 (c) 1 (d) 4

Answer»

Question 22

Which power of 8 is equal to $2^{6}$ ?
(a) 3
(b) 2
(c) 1
(d) 4

Discussion

14898.	Question 111 Pluto is 5913000000 m from the Sun. Express this in the standard form.
Answer» Question 111 Pluto is 5913000000 m from the Sun. Express this in the standard form.

14898.

Question 111 Pluto is 5913000000 m from the Sun. Express this in the standard form.

Answer»

Question 111

Pluto is 5913000000 m from the Sun. Express this in the standard form.

Discussion

14899.	A train 50 M long passes over a bridge at a speed of 30 km if it takes 36 second to cross the bridge the length of the bridge will be what
Answer» A train 50 M long passes over a bridge at a speed of 30 km if it takes 36 second to cross the bridge the length of the bridge will be what

Discussion

14900.	Solve: [(5z−2)2+40z]÷(5z+2)
Answer» Solve: $[{(5 z - 2)}^{2} + 40 z] \div (5 z + 2)$

Discussion

Explore topic-wise InterviewSolutions in .

In a survey of 300 android mobile users, who make video calls, 75 people said they use viber, 45 use skype and 90 people use both. The number of persons who use neither viber nor skype is __.

If each angle of the polygon is less than 180∘, then it is known as

The number of edges a pentagonal pyramid has is ___

Question 9 A ΔABC is right angled at A. L is a point on BC such that AL ⊥ BC. Prove that ∠BAL=∠ACB.

Find the angle between the hour hand and minute hand when the clock shows 2 p.m.

What is the difference between the number of mangoes sold on Sunday and number of custard apples sold on Wednesday?

What is 29 of 45?

The area of a triangular shaped field is 24 square meter and it has a height of 6 m. Find the base length of the field.

According to Pythagoras property: If in a right angled triangle, perpendicular, base and hypotaneus are a, b and c respectively, then which of the options is true?

Solve √2x2+x+√2=0

Write down a pair of integers whose: a) Sum is -8

Two adjacent sides of a rectangle are 6x2+4y2+2xy and x2−2x+4xy. Find its perimeter?

The factors of a2+b−ab−a are :

Find the value using suitable property. i) 8 × 53 × (-125) ii) (-47) × 102 iii) 4574 x 99 - ( -4574) iv) 2369x (-487) – 1369 x (-487) v) 25 × 15 × 4 × 6

Dia sold her dress for ₹2500 with a profit of ₹500. She made a profit of ___ % on this sale.25

Calculate the area of a rectangular park whose length is 1525 m and breadth is 503 m.

If certain figures are equally balanced in proportion, then they are ___ .

Observe the given bar graph and tap on the bar corresponding to the highest scorer.

The product of two rational numbers is -2.If one of them is 47,find the other.

Question 55 Fill in the blanks to make the statement true. An angle is 45∘, its complementary angle will be ___.

What is speed or average speed please give an answer in a easy way

What is the volume of an utensil whose density and mass are 50 g/cm3 and 2000 g respectively?

A square park of side 7 m has to be paved with bricks. If the cost of laying bricks is ₹10/m2, then the cost of laying the bricks is ___.

If the expanded form of a number is 2 x 104 + 3 x 102 + 5 x 101 + 7, then the number is

A carpenter makes a new table in 5 days, working 6 hours a day. In order to make the same table in 3 days, how many hours per day must he work?

If in the given parallelogram AE = CF = 16 cm and BD = 28 cm, then what is its area?

Question 66 (h) Find the value of the given polynomial at a = -2 and b = 3. a2+b2−ab−b2−a2

A number when multiplied by 4 exceeds itself by 45. Find the number.

Question 44 If D is the mid-point of side BC in ΔABC, where AB = AC, then ∠ADC is a) 60∘ b) 45∘ c) 120∘ d) 90∘

Question 88 State whether the statement is True or False. Rotation turns an object about a fixed point which is known as the centre of rotation.

How to find median in data handling?

The sides of a right angled triangle are 5x, 4x and 3x units respectively. If the perimeter is 36 units, what is x?

Penny gives a box to each of her four friends which has 3 action figures inside it. How many action figures are there in total ?

If an amount of Rs. 1,42,136 is distributed equally amongst 163 persons, how much amount would each person get ?

Choose the images with the order of rotational symmetry as 4.

I) can a triangle have all angles less than 60 degree explain. II) can a triangle have all angles equal to 60 degree explain.

Expansion of (a+b)2 is:

The sum of two numbers, one of which is 23 times the other, is 50. Find two numbers.

A number is divided into two parts, such that one part is 20 more than the other. If the two parts are in the ratio 7 : 3, then find the number and the two parts.

Question 77(i) Study the double bar graphs given below and answer the following questions: Which sport is liked the most by class VIII students?

A hall is in the shape of a parallelogram. One of the parallel walls measures 8 m. The perpendicular distance corresponding to that wall is 1.75 times the length of this wall. If the cost of carpeting the hall is ₹2 per m2 , find the total cost of carpeting the hall.

Question 26 The equivalent of 57 whose numerator is 45, is ___.

Question 1 A triangle can be constructed by taking its sides as a) 1.8 cm, 2.6 cm, 4.4 cm b) 2 cm, 3 cm, 4 cm c) 2.4 cm, 2.4 cm, 6.4 cm d) 3.2 cm, 2.3 cm, 5.5 cm

In a △ABC, perpendicular AD from A on BC meets at D. If BD=8 cm, DC=2 cm and AD=4 cm, then:

The angle is 5 times its supplement.Find the angle.Answer fast please.I am submiting this question second time.

Question 22 Which power of 8 is equal to 26? (a) 3 (b) 2 (c) 1 (d) 4

Question 111 Pluto is 5913000000 m from the Sun. Express this in the standard form.

A train 50 M long passes over a bridge at a speed of 30 km if it takes 36 second to cross the bridge the length of the bridge will be what

Solve: [(5z−2)2+40z]÷(5z+2)