Explore topic-wise InterviewSolutions in .

This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

2901.

The difference between increased number by increasing 8% of given number and decreased number by decreasing 7% of the same number is 75. What is the number ?

Answer» The difference between increased number by increasing 8% of given number and decreased number by decreasing 7% of the same number is 75. What is the number ?
2902.

Question 44 In the given question, state whether the given statement is True or False. In N÷5 leaves remainder 3 and N÷2 leaves remainder 0, then N÷10 leaves remainder 4.

Answer» Question 44

In the given question, state whether the given statement is True or False.

In N÷5 leaves remainder 3 and N÷2 leaves remainder 0, then N÷10 leaves remainder 4.
2903.

If x=2−√3, find the value of (x−1x)3

Answer» If x=23, find the value of (x1x)3
2904.

Andy’s friend Sandy also got his land restructured. In his case, the land was rectangular before. Keeping the same base and same parallels, LandGrabbers restructured it into a parallelogram-shaped land as shown in the figure. Sandy spent Rs. 400 on fencing and Rs. 500 on ploughing earlier. If AE is twice of AD, find the extra amount he has to spent now on fencing and ploughing respectively in terms of ‘x’ and ‘y’.

Answer»

Andy’s friend Sandy also got his land restructured. In his case, the land was rectangular before. Keeping the same base and same parallels, LandGrabbers restructured it into a parallelogram-shaped land as shown in the figure. Sandy spent Rs. 400 on fencing and Rs. 500 on ploughing earlier. If AE is twice of AD, find the extra amount he has to spent now on fencing and ploughing respectively in terms of ‘x’ and ‘y’.





2905.

A figure of sphere is given below:Find the volume of this sphere.

Answer»

A figure of sphere is given below:





Find the volume of this sphere.

2906.

In a class of 70 students there are 40 boys and 30 girls. 20 percent of boys and 30 percent of girls have grey hair and remaining have black hair. A student is selected at random from the class. Let A,B denote the event that the selected student has grey hair, black hair repectively and E,F denote the event that the selected student is boy, girl repectively, then P(B∩F)=

Answer»

In a class of 70 students there are 40 boys and 30 girls. 20 percent of boys and 30 percent of girls have grey hair and remaining have black hair. A student is selected at random from the class. Let A,B denote the event that the selected student has grey hair, black hair repectively and E,F denote the event that the selected student is boy, girl repectively, then P(BF)=

2907.

Subtract:(i) 5ab+4ac−6a+15c−15 from 10ab+22bc−13a−14b−16c−24(ii) 5a2b+10b2c2−10b2c−21ab+32 from 50−20b2c2−4bc−ac−5ab.

Answer» Subtract:



(i) 5ab+4ac6a+15c15 from 10ab+22bc13a14b16c24



(ii) 5a2b+10b2c210b2c21ab+32 from 5020b2c24bcac5ab.
2908.

Find 4 digit square number that has perfect square number with even even odd even

Answer» Find 4 digit square number that has perfect square number with even even odd even
2909.

Solve the following equation for x.5x−46=2+3x2

Answer»

Solve the following equation for x.

5x46=2+3x2



2910.

In a laboratory, the count of bacteria in a certain experiment was increasing at the rate of 2.5% per hour. What is the approximate count of bacteria at the end of 2 hours if the count was initially 5,06,000?531616

Answer» In a laboratory, the count of bacteria in a certain experiment was increasing at the rate of 2.5% per hour. What is the approximate count of bacteria at the end of 2 hours if the count was initially 5,06,000?
  1. 531616
2911.

Write the antecedent (given part) and the consequent (part to be proved) in the following statements.(i) If all sides of a triangle are congruent then its all angles are congruent.(ii) The diagonals of a parallelogram bisect each other.

Answer»
Write the antecedent (given part) and the consequent (part to be proved) in the following statements.


(i) If all sides of a triangle are congruent then its all angles are congruent.


(ii) The diagonals of a parallelogram bisect each other.
2912.

Evaluate √2.8 correct up to two places of decimal.

Answer» Evaluate 2.8 correct up to two places of decimal.
2913.

If X and Y are two sets such that X∪Y has 50 elements, X has 28 elements and Y has 32 elements, how many elements does X∩Y have?

Answer» If X and Y are two sets such that XY has 50 elements, X has 28 elements and Y has 32 elements, how many elements does XY have?


2914.

A group of 3 friends staying together, consume 54 kg of wheat every month. Some more friends join this group and they find that the same amount of wheat lasts for 18 days. How many new numbers are there in this group now ?

Answer»

A group of 3 friends staying together, consume 54 kg of wheat every month. Some more friends join this group and they find that the same amount of wheat lasts for 18 days. How many new numbers are there in this group now ?

2915.

Question 50 If rs is a rational number, then s cannot be equal to zero.

Answer» Question 50
If rs is a rational number, then s cannot be equal to zero.
2916.

Construct a quadrilateral ABCD in which AB=BC=3 cm, AD=5 cm,∠A=90∘ and ∠B=105∘.

Answer»

Construct a quadrilateral ABCD in which AB=BC=3 cm, AD=5 cm,A=90 and B=105.

2917.

Construct right angle triangle LMN in which ∠M = 90°, MN = 4.5 cm and LN = 5.6 cm.

Answer»

Construct right angle triangle LMN in which M = 90°, MN = 4.5 cm and LN = 5.6 cm.

2918.

Write a function that checks whether an input number is a palindrome or not. [Note: A number or a string is called palindrome if it appears same when written in reverse order also. For example, 12321 is a palindrome while 123421 is not a palindrome]

Answer» Write a function that checks whether an input number is a palindrome or not. [Note: A number or a string is called palindrome if it appears same when written in reverse order also. For example, 12321 is a palindrome while 123421 is not a palindrome]
2919.

Which of the following is/are not linear equation(s)?

Answer»

Which of the following is/are not linear equation(s)?

2920.

The area of a trapezium is 440 cm2. The lengths of the parallel sides are 60 cm and 28 cm respectively. The distance between the parallel sides is cm.

Answer»

The area of a trapezium is 440 cm2. The lengths of the parallel sides are 60 cm and 28 cm respectively. The distance between the parallel sides is cm.


2921.

What could be the possible One’s digits of the square root of each of the following numbers?(i) 9801(ii) 99856(iii) 998001(iv) 657666025

Answer»

What could be the possible One’s digits of the square root of each of the following numbers?

(i) 9801

(ii) 99856

(iii) 998001

(iv) 657666025

2922.

The ratio between the exterior angle and the interior angle of a regular polygon is 1:4. Find the number of sides in the polygon.

Answer» The ratio between the exterior angle and the interior angle of a regular polygon is 1:4. Find the number of sides in the polygon.
2923.

If A and B are the coefficient of xn in the expansion of (1 + x)2n and (1 + x)2n – 1 respectively, then AB=___________.

Answer» If A and B are the coefficient of xn in the expansion of (1 + x)2n and (1 + x)2n – 1 respectively, then AB=___________.
2924.

Question 103Solve the following:There are 40 passengers in a bus, some with Rs. 3 tickets and remaining with Rs. 10 tickets. The total collection from these passengers is Rs. 295. Find how many passengers have tickets worth Rs. 3?

Answer»

Question 103



Solve the following:



There are 40 passengers in a bus, some with Rs. 3 tickets and remaining with Rs. 10 tickets. The total collection from these passengers is Rs. 295. Find how many passengers have tickets worth Rs. 3?



2925.

5929 students are sitting in an auditorium in such a manner,that there was as many students in a row as there are rows in the auditorium.How many rows are there in an auditorium??

Answer»

5929 students are sitting in an auditorium in such a manner,that there was as many students in a row as there are rows in the auditorium.How many rows are there in an auditorium??

2926.

Question 1(iv) Factorise the following expressions 49y2+84yz+36z2

Answer» Question 1(iv)
Factorise the following expressions
49y2+84yz+36z2
2927.

Question 122 Solve the following question: Difference of two perfect cubes is 189. If the cube root of the smaller of the two numbers is 3, then find the cube root of the larger number.

Answer»

Question 122

Solve the following question:

Difference of two perfect cubes is 189. If the cube root of the smaller of the two numbers is 3, then find the cube root of the larger number.

2928.

The total cost of fencing a circular garden at the rate of $3 per meter is $120π . Find the radius of the garden. m

Answer» The total cost of fencing a circular garden at the rate of $3 per meter is $120π . Find the radius of the garden.

m
2929.

Question 92 (xxv)Factorise the following using the identity a2−b2=(a+b)(a−b).16x4−625y4

Answer»

Question 92 (xxv)



Factorise the following using the identity a2b2=(a+b)(ab).



16x4625y4



2930.

Question 103State whether the statements are True or False.If the sum of interior angles is double the sum of exterior angles taken in an order of a polygon, then it is a hexagon.

Answer» Question 103

State whether the statements are True or False.


If the sum of interior angles is double the sum of exterior angles taken in an order of a polygon, then it is a hexagon.
2931.

The length and breadth of a school ground are 150 m and 90 m respectively, while the length and breadth of a mela ground are 210 m and 126 m, respectively. Are these measurements in proportion?

Answer» The length and breadth of a school ground are 150 m and 90 m respectively, while the length and breadth of a mela ground are 210 m and 126 m, respectively. Are these measurements in proportion?
2932.

Meena and Anand each lent the same sum of money for 2 years at 5% simple interest rate and at 5% compound interest rate respectively. Anand received ₹15 more than Meena. Find the amount of money lent by them?

Answer»

Meena and Anand each lent the same sum of money for 2 years at 5% simple interest rate and at 5% compound interest rate respectively. Anand received ₹15 more than Meena. Find the amount of money lent by them?



2933.

The square root of 0.0009 is ______.

Answer»

The square root of 0.0009 is ______.


2934.

Find the total of number of ways of answering 4 multiple choice questions, each having 4 choices?

Answer»

Find the total of number of ways of answering 4 multiple choice questions, each having 4 choices?

2935.

The area of a circle circumscribing a regular octagon of side 14 cm is k(2+\sqrt2)cm^2,then find sum of digits of

Answer» The area of a circle circumscribing a regular octagon of side 14 cm is k(2+\sqrt2)cm^2,then find sum of digits of
2936.

(a) Subtract 4a− 7ab + 3b + 12 from 12a − 9ab+ 5b − 3(b) Subtract 3xy+ 5yz − 7zx from 5xy − 2yz −2zx + 10xyz(c) Subtract 4p2q − 3pq + 5pq2− 8p + 7q − 10 from 18 − 3p −11q + 5pq − 2pq2 + 5p2q

Answer»

(a) Subtract 4a
− 7ab + 3b + 12 from 12a − 9ab
+ 5b − 3


(b) Subtract 3xy
+ 5yz − 7zx from 5xy − 2yz
2zx + 10xyz



(c) Subtract 4p2q − 3pq + 5pq2
− 8p + 7q − 10 from 18 − 3p
11q + 5pq − 2pq2 + 5p2q

2937.

THE LENGTHS OF DIAGONALS OF A RHOMBUS ARE 16 AND 12. THEN THE LENGTH OF SIDE OF RHOMBUS IS

Answer» THE LENGTHS OF DIAGONALS OF A RHOMBUS ARE 16 AND 12. THEN THE LENGTH OF SIDE OF RHOMBUS IS
2938.

Each student of a class has 'p' books. If there are 'q' students in the class, total how many books are there?

Answer» Each student of a class has 'p' books. If there are 'q' students in the class, total how many books are there?
2939.

The following table shows number of males and females of a locality in different age groups. Age in years10−2021−50Above 50Male12164Female8146 If one person is selected at random, find the probability of getting a female.

Answer»

The following table shows number of males and females of a locality in different age groups.

Age in years10202150Above 50Male12164Female8146

If one person is selected at random, find the probability of getting a female.


2940.

If the age of fossil is determined by the given expression 9,900,000,000+(4.5×106−2.8×105)×5×104, then it is equivalent to .

Answer»

If the age of fossil is determined by the given expression 9,900,000,000+(4.5×1062.8×105)×5×104, then it is equivalent to .

2941.

Find the surface area of a wooden box whose shape is of a cube, and if the edge of the box is 12 cm.

Answer»

Find the surface area of a wooden box whose shape is of a cube, and if the edge of the box is 12 cm.

2942.

The sum of two rational nos. Is -2. If one of the nos, is -14/5 find the other number

Answer»

The sum of two rational nos. Is -2. If one of the nos, is -14/5 find the other number

2943.

Question 55(iv)Study the graph given below of a person who started from his home and returned at the end of the day. Answer the questions that follow.What was the total distance travelled by him throughout the day?

Answer» Question 55(iv)

Study the graph given below of a person who started from his home and returned at the end of the day. Answer the questions that follow.







What was the total distance travelled by him throughout the day?


2944.

Question 2 (iii)Write the point identified by the coordinates (-3, -5).

Answer»

Question 2 (iii)

Write the point identified by the coordinates (-3, -5).





2945.

Question 61In the following question, state whether the statement is True (T) or False (F):(a+b)(a−b)=a2−b2

Answer»

Question 61



In the following question, state whether the statement is True (T) or False (F):



(a+b)(ab)=a2b2



2946.

prove that if m and n both odd positive integer then m2+n2 is even but not divisible by 4

Answer» prove that if m and n both odd positive integer then m2+n2 is even but not divisible by 4
2947.

Rédigez le bulletin météo de votre pays pour demain.

Answer» Rédigez le bulletin météo de votre pays pour demain.
2948.

Given that arc, AB subtends an angle of 40∘ to the center of a circle. The angle made by arc AB in the remaining part of the circle is

Answer»

Given that arc, AB subtends an angle of 40 to the center of a circle. The angle made by arc AB in the remaining part of the circle is

2949.

Identify the front view of the given solid block.

Answer»

Identify the front view of the given solid block.


2950.

If x and y vary inversely and x = 18 when y = 8, find x when y = 16.

Answer»

If x and y vary inversely and x = 18 when y = 8, find x when y = 16.