25365 + Interview Questions in Mathematics Page 90 InterviewSolution

4451.	The tenth place value of √8 .
Answer» The tenth place value of $\sqrt{8}$ .

Discussion

4452.	Volume of a 3D shape is:
Answer» Volume of a 3D shape is:

Discussion

4453.	The number of sides in a kite is___.
Answer» The number of sides in a kite is ___.

Discussion

4454.	The sum of money is divided between two friends such that 1/5of the amount first friend gets is same as 1/7 of the amount second friend get. If the amount of money to be divided was ₹36000.what is the share of both the friends.
Answer» The sum of money is divided between two friends such that 1/5of the amount first friend gets is same as 1/7 of the amount second friend get. If the amount of money to be divided was ₹36000.what is the share of both the friends.

Discussion

4455.	How many sides does a regular polygon have if each of its interior angle is 165°
Answer» How many sides does a regular polygon have if each of its interior angle is 165°

Discussion

4456.	If I add a 2 digit number and the number formed by reversing the digits, then the sum is surely divisible by ____.
Answer» If I add a 2 digit number and the number formed by reversing the digits, then the sum is surely divisible by ____.

Discussion

4457.	The median of the following data is 29.23, 49, 37, 29, 56, 60, 47
Answer» The median of the following data is 29. 23, 49, 37, 29, 56, 60, 47

Discussion

4458.	Which are prisms among the following?
Answer» Which are prisms among the following?

Discussion

4459.	Find the amount and the compound interest on Rs. 32000 for 1 year at 20% per annum compounded half-yearly.
Answer» Find the amount and the compound interest on Rs. 32000 for 1 year at 20% per annum compounded half-yearly.

Discussion

4460.	Factorise by grouping method: (ax+by)2+(bx−ay)2
Answer» Factorise by grouping method: $(a x + b y)^{2} + (b x - a y)^{2}$

4460.

Factorise by grouping method: (ax+by)2+(bx−ay)2

Answer»

Factorise by grouping method:

$(a x + b y)^{2} + (b x - a y)^{2}$

Discussion

4461.	In polygon ABCDE, \angle B and \angle E are right angles and AC \vert\vert DE and AB = 3 cm, BC = DE = 4 cm, AE = 2 cm. The area of ABCDE is
Answer» In polygon ABCDE, \angle B and \angle E are right angles and AC \vert\vert DE and AB = 3 cm, BC = DE = 4 cm, AE = 2 cm. The area of ABCDE is

Discussion

4462.	The amount to be paid back if the principal of ₹ 5000 is taken at a rate of 11% interest per annum under simple interest for a period of 3 years will be equal to
Answer» The amount to be paid back if the principal of ₹ 5000 is taken at a rate of 11% interest per annum under simple interest for a period of 3 years will be equal to

Discussion

4463.	Mark the correct alternative in the following question:The coefficient of x2 in -53x2y is equal toa -53 b -53y c 53 d 53y
Answer» Mark the correct alternative in the following question: $The coefficient of x^{2} in - \frac{5}{3} x^{2} y is equal to (a) - \frac{5}{3} (b) - \frac{5}{3} y (c) \frac{5}{3} (d) \frac{5}{3} y$

Discussion

4464.	The diagonal of a square is 15 m; find the length of its one side and perimeter.
Answer» The diagonal of a square is 15 m; find the length of its one side and perimeter.

Discussion

4465.	rahkis mother is four times as old as rahki.after five years, her mother will be three times as old as she will be then. Find their present ages.
Answer» rahkis mother is four times as old as rahki.after five years, her mother will be three times as old as she will be then. Find their present ages.

Discussion

4466.	5. the sum of number and its reciprocal is 2 1/42.find the number
Answer» 5. the sum of number and its reciprocal is 2 1/42.find the number

Discussion

4467.	Question 33 A coin is tossed two times. The number of possible outcomes is (a) 1 (b) 2 (3) 3 (d) 4
Answer» Question 33 A coin is tossed two times. The number of possible outcomes is (a) 1 (b) 2 (3) 3 (d) 4

4467.

Question 33 A coin is tossed two times. The number of possible outcomes is (a) 1 (b) 2 (3) 3 (d) 4

Answer»

Question 33

A coin is tossed two times. The number of possible outcomes is
(a) 1
(b) 2
(3) 3
(d) 4

Discussion

4468.	Which of the following fractions is a terminating decimal?
Answer» Which of the following fractions is a terminating decimal?

Discussion

4469.	33. (27/8)1/2(64)-1/2=3-x
Answer» 33. (27/8)1/2(64)-1/2=3-x

Discussion

4470.	Find the total surface area of a right circular cylinder whose height is 15 cm and diameter of the cross section is 14 m.
Answer» Find the total surface area of a right circular cylinder whose height is 15 cm and diameter of the cross section is 14 m.

Discussion

4471.	For the pattern 68, ___, 54 to be an arithmetic sequence, the number that can be filled in the blank is .
Answer» For the pattern 68, ___, 54 to be an arithmetic sequence, the number that can be filled in the blank is .

Discussion

4472.	A watch becomes fast by 12 minutes everyday. By what percent does it become fast?
Answer» A watch becomes fast by $12$ minutes everyday. By what percent does it become fast?

Discussion

4473.	Simplify and find the value of following expression:(235)2+(231)2−(470×231)
Answer» Simplify and find the value of following expression: $(235)^{2} + (231)^{2} - (470 \times 231)$

Discussion

4474.	23.The decimal number equivalent to a binary number 1011001 is a)13 b)17 c)89 d)178
Answer» 23.The decimal number equivalent to a binary number 1011001 is a)13 b)17 c)89 d)178

Discussion

4475.	Question 2 (b)Identify all the quadrilaterals that have:(b) Four right angles.
Answer» Question 2 (b) Identify all the quadrilaterals that have: (b) Four right angles.

4475.

Question 2 (b)Identify all the quadrilaterals that have:(b) Four right angles.

Answer»

Question 2 (b)

Identify all the quadrilaterals that have:

(b) Four right angles.

Discussion

4476.	{ If }A=\{x^2+y^2=16\}}{ and B}=\{9x^2+25y^2=225\}} Thenwhat is the value }{ of }n(A∩ B)
Answer» { If }A=\{x^2+y^2=16\}}{ and B}=\{9x^2+25y^2=225\}} Thenwhat is the value }{ of }n(A∩ B)

Discussion

4477.	In the above figure, if O is the centre of the circle then which of the following is correct?
Answer» In the above figure, if $O$ is the centre of the circle then which of the following is correct?

Discussion

4478.	A five- digit number " AABAA " is divisible by 33. Write all the numbers of this form.
Answer» A five- digit number " AABAA " is divisible by 33. Write all the numbers of this form.

Discussion

4479.	In the given figure, find a+b+c+d.
Answer» In the given figure, find $a + b + c + d$ .

Discussion

4480.	The sum of the digits of a two-digit number is 9. When we interchange the digits it is found that the resulting new number is greater than the original number by 27. What is the two-digit number?
Answer» The sum of the digits of a two-digit number is $9$ . When we interchange the digits it is found that the resulting new number is greater than the original number by $27$ . What is the two-digit number?

Discussion

4481.	The first unit of the number line has been divided into 15 equal parts. Which of the following rational numbers cannot be represented on such number line?
Answer» The first unit of the number line has been divided into 15 equal parts. Which of the following rational numbers cannot be represented on such number line?

Discussion

4482.	Question 5For all real values of c, the pair of equations x – 2y = 8 and 5x – 10y = c have a unique solution. Justify whether it is true or false.
Answer» Question 5 For all real values of c, the pair of equations x – 2y = 8 and 5x – 10y = c have a unique solution. Justify whether it is true or false.

Discussion

4483.	If the total score of G5 is 53, then how much more did they score compared to that made by women of G1.
Answer» If the total score of $G_{5}$ is 53, then how much more did they score compared to that made by women of $G_{1}$ .

Discussion

4484.	A cube of a number is 8 times the cube of another number. If the sum of the cubes of number is 243,then what is difference of the number?
Answer» A cube of a number is 8 times the cube of another number. If the sum of the cubes of number is 243,then what is difference of the number?

Discussion

4485.	Question 83 Arunima bought household items whose marked price and discount is as follows ItemQuantityRate(in Rs)Discount%(i)Atta1 packet20016%(ii)Detergent1 packet37122.10%(iii)Namkeen1 packet15318.30% Find the total amount of the bill she has to pay.
Answer» Question 83 Arunima bought household items whose marked price and discount is as follows $\begin{matrix} Item & Quantity & Rate(in Rs) & Discount % (i)Atta & 1 packet & 200 & 16 % (ii)Detergent & 1 packet & 371 & 22.10 % (iii)Namkeen & 1 packet & 153 & 18.30 % \end{matrix}$ Find the total amount of the bill she has to pay.

4485.

Question 83 Arunima bought household items whose marked price and discount is as follows ItemQuantityRate(in Rs)Discount%(i)Atta1 packet20016%(ii)Detergent1 packet37122.10%(iii)Namkeen1 packet15318.30% Find the total amount of the bill she has to pay.

Answer»

Question 83

Arunima bought household items whose marked price and discount is as follows
$\begin{matrix} Item & Quantity & Rate(in Rs) & Discount % (i)Atta & 1 packet & 200 & 16 % (ii)Detergent & 1 packet & 371 & 22.10 % (iii)Namkeen & 1 packet & 153 & 18.30 % \end{matrix}$

Find the total amount of the bill she has to pay.

Discussion

4486.	Which point lies on the line "y = 3"?
Answer» Which point lies on the line "y = 3"?

Discussion

4487.	Find dy/dx where y=(ax^3+3)^4Sol: Let t=ax^3+3dy/dx=dt^4/dt×dt/dxdy/dx=4t^3 × 3x^2 ady/dx=4(ax^3+3) × 3x^2 aexplain the third step why we wrote 4(ax^3+3) and not 4(ax^3+3)^3
Answer» Find dy/dx where y=(ax^3+3)^4 Sol: Let t=ax^3+3 dy/dx=dt^4/dt×dt/dx dy/dx=4t^3 × 3x^2 a dy/dx=4(ax^3+3) × 3x^2 a explain the third step why we wrote 4(ax^3+3) and not 4(ax^3+3)^3

Discussion

4488.	Factorise: 16x5-144x3
Answer» Factorise: 16x⁵-144x³

Discussion

4489.	Find the square of 31.
Answer» Find the square of $31$ .

Discussion

4490.	X2+1/X2=38,X3-1/X3=?
Answer» X₂_+1/X2=38,X_3-1/X3=?

Discussion

4491.	Expand : [√3x−√25y]2
Answer» Expand : ${[\sqrt{3 x} - \frac{\sqrt{2}}{5} y]}^{2}$

Discussion

4492.	30. if (x)square+px+q=(x+a)(x+b) Factorize(x)square+pxy+(qy)square
Answer» 30. if (x)square+px+q=(x+a)(x+b) Factorize(x)square+pxy+(qy)square

Discussion

4493.	Question 34A coin is tossed three times. The number of possible outcomes is(a) 3(b) 4(c) 6(d) 8
Answer» Question 34 A coin is tossed three times. The number of possible outcomes is (a) 3 (b) 4 (c) 6 (d) 8

4493.

Question 34A coin is tossed three times. The number of possible outcomes is(a) 3(b) 4(c) 6(d) 8

Answer»

Question 34

A coin is tossed three times. The number of possible outcomes is

(a) 3

(b) 4

(c) 6

(d) 8

Discussion

4494.	The slope of a line is 1. It passes through the point (2,3). What is its equation?
Answer» The slope of a line is 1. It passes through the point (2,3). What is its equation?

Discussion

4495.	Question 87A shopkeeper was selling all his items at 25% discount. During the off-season, he offered 30% discount over and above the existing discount. If Pragya bought a skirt which was marked for Rs 1200, how much did she pay for it?
Answer» Question 87 A shopkeeper was selling all his items at 25% discount. During the off-season, he offered 30% discount over and above the existing discount. If Pragya bought a skirt which was marked for Rs 1200, how much did she pay for it?

4495.

Question 87A shopkeeper was selling all his items at 25% discount. During the off-season, he offered 30% discount over and above the existing discount. If Pragya bought a skirt which was marked for Rs 1200, how much did she pay for it?

Answer»

Question 87

A shopkeeper was selling all his items at 25% discount. During the off-season, he offered 30% discount over and above the existing discount. If Pragya bought a skirt which was marked for Rs 1200, how much did she pay for it?

Discussion

4496.	Starting with the middle cell in the bottom row of the square and using numbers from 1 to 9, construct a 3× 3 magic square.
Answer» Starting with the middle cell in the bottom row of the square and using numbers from 1 to 9, construct a 3× 3 magic square.

Discussion

4497.	Arrange the following rational numbers in the ascending order54,23,68,85,92.
Answer» Arrange the following rational numbers in the ascending order $\frac{5}{4}, \frac{2}{3}, \frac{6}{8}, \frac{8}{5}, \frac{9}{2} .$

Discussion

4498.	Find the value(s) of x for the relation 2y = (x+1)(x-1) at f(x) = 1 and determine whether it a function or not. Given that x is an independent variable and y is a dependent variable. Answer in Yes/No.
Answer» Find the value(s) of x for the relation 2y = (x+1)(x-1) at f(x) = 1 and determine whether it a function or not. Given that $x$ is an independent variable and $y$ is a dependent variable. Answer in Yes/No.

Discussion

4499.	Calculate the amount and compound interest on ₹10,800 for 3 years at 1212% per annum compounded annually.
Answer» Calculate the amount and compound interest on ₹10,800 for 3 years at $12 \frac{1}{2}$ % per annum compounded annually.

Discussion

4500.	Fabina borrows Rs 12,500 at 12% per annum for 3 years at simple interest and Radha borrows the same amount for the same time period at 10% per annum, compounded annually. Who pays more interest and by how much?
Answer» Fabina borrows Rs 12,500 at 12% per annum for 3 years at simple interest and Radha borrows the same amount for the same time period at 10% per annum, compounded annually. Who pays more interest and by how much?

Discussion

Explore topic-wise InterviewSolutions in .

The tenth place value of √8 .

Volume of a 3D shape is:

The number of sides in a kite is___.

The sum of money is divided between two friends such that 1/5of the amount first friend gets is same as 1/7 of the amount second friend get. If the amount of money to be divided was ₹36000.what is the share of both the friends.

How many sides does a regular polygon have if each of its interior angle is 165°

If I add a 2 digit number and the number formed by reversing the digits, then the sum is surely divisible by ____.

The median of the following data is 29.23, 49, 37, 29, 56, 60, 47

Which are prisms among the following?

Find the amount and the compound interest on Rs. 32000 for 1 year at 20% per annum compounded half-yearly.

Factorise by grouping method: (ax+by)2+(bx−ay)2

In polygon ABCDE, \angle B and \angle E are right angles and AC \vert\vert DE and AB = 3 cm, BC = DE = 4 cm, AE = 2 cm. The area of ABCDE is

The amount to be paid back if the principal of ₹ 5000 is taken at a rate of 11% interest per annum under simple interest for a period of 3 years will be equal to

Mark the correct alternative in the following question:The coefficient of x2 in -53x2y is equal toa -53 b -53y c 53 d 53y

The diagonal of a square is 15 m; find the length of its one side and perimeter.

rahkis mother is four times as old as rahki.after five years, her mother will be three times as old as she will be then. Find their present ages.

5. the sum of number and its reciprocal is 2 1/42.find the number

Question 33 A coin is tossed two times. The number of possible outcomes is (a) 1 (b) 2 (3) 3 (d) 4

Which of the following fractions is a terminating decimal?

33. (27/8)1/2(64)-1/2=3-x

Find the total surface area of a right circular cylinder whose height is 15 cm and diameter of the cross section is 14 m.

For the pattern 68, ___, 54 to be an arithmetic sequence, the number that can be filled in the blank is .

A watch becomes fast by 12 minutes everyday. By what percent does it become fast?

Simplify and find the value of following expression:(235)2+(231)2−(470×231)

23.The decimal number equivalent to a binary number 1011001 is a)13 b)17 c)89 d)178

Question 2 (b)Identify all the quadrilaterals that have:(b) Four right angles.

{ If }A=\{x^2+y^2=16\}}{ and B}=\{9x^2+25y^2=225\}} Thenwhat is the value }{ of }n(A∩ B)

In the above figure, if O is the centre of the circle then which of the following is correct?

A five- digit number " AABAA " is divisible by 33. Write all the numbers of this form.

In the given figure, find a+b+c+d.

The sum of the digits of a two-digit number is 9. When we interchange the digits it is found that the resulting new number is greater than the original number by 27. What is the two-digit number?

The first unit of the number line has been divided into 15 equal parts. Which of the following rational numbers cannot be represented on such number line?

Question 5For all real values of c, the pair of equations x – 2y = 8 and 5x – 10y = c have a unique solution. Justify whether it is true or false.

If the total score of G5 is 53, then how much more did they score compared to that made by women of G1.

A cube of a number is 8 times the cube of another number. If the sum of the cubes of number is 243,then what is difference of the number?

Question 83 Arunima bought household items whose marked price and discount is as follows ItemQuantityRate(in Rs)Discount%(i)Atta1 packet20016%(ii)Detergent1 packet37122.10%(iii)Namkeen1 packet15318.30% Find the total amount of the bill she has to pay.

Which point lies on the line "y = 3"?

Find dy/dx where y=(ax^3+3)^4Sol: Let t=ax^3+3dy/dx=dt^4/dt×dt/dxdy/dx=4t^3 × 3x^2 ady/dx=4(ax^3+3) × 3x^2 aexplain the third step why we wrote 4(ax^3+3) and not 4(ax^3+3)^3

Factorise: 16x5-144x3

Find the square of 31.

X2+1/X2=38,X3-1/X3=?

Expand : [√3x−√25y]2

30. if (x)square+px+q=(x+a)(x+b) Factorize(x)square+pxy+(qy)square

Question 34A coin is tossed three times. The number of possible outcomes is(a) 3(b) 4(c) 6(d) 8

The slope of a line is 1. It passes through the point (2,3). What is its equation?

Question 87A shopkeeper was selling all his items at 25% discount. During the off-season, he offered 30% discount over and above the existing discount. If Pragya bought a skirt which was marked for Rs 1200, how much did she pay for it?

Starting with the middle cell in the bottom row of the square and using numbers from 1 to 9, construct a 3× 3 magic square.

Arrange the following rational numbers in the ascending order54,23,68,85,92.

Find the value(s) of x for the relation 2y = (x+1)(x-1) at f(x) = 1 and determine whether it a function or not. Given that x is an independent variable and y is a dependent variable. Answer in Yes/No.

Calculate the amount and compound interest on ₹10,800 for 3 years at 1212% per annum compounded annually.

Fabina borrows Rs 12,500 at 12% per annum for 3 years at simple interest and Radha borrows the same amount for the same time period at 10% per annum, compounded annually. Who pays more interest and by how much?