Maths Quiz Questions with Answers Part - 1

Question Bank for Quiz competition
VIII, IX and X standard

Maths Quiz Questions with Answers. Let us answer here some of the quizzes which are based on the basic concepts and formulas of classes 7^th , 8^th , 9^th and 10^th  concepts.

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Question: 1

Define fundamental theorem  of arithmetic.

Ans : Every composite number can be expressed as the product of primes and this factorization is unique irrespective of order of factors.

Question: 2

What is the largest prime number of two digit.    

Ans : 97

Question: 3

How many times can you subtract 100 from 2000.

Ans : Only Once

Question: 4

Out of following   -1, 0 & 1, which are integers?  

Ans : All of these

Question: 5

A person has 4 sons. If each brother has one sister, then how many children are there?

Ans : 5

Question: 6

What is the condition of the denominator of a terminating decimal .   

Ans : 2^m x 5ⁿ

Question: 7

What are irrational decimals.

Ans : Non-terminating and non-recurring decimals are called rational decimals.

Question: 8

Define   co-prime number, give any example?     

Ans : When HCF of two numbers is 1, then numbers are called co-prime numbers. For Example  5, 6

Question: 9

What is the value of  50 + 50/100  

Ans : 50.5

Question: 10

Define Rational Number.

Ans : The numbers which can be put in the form of p/q (q ≠ 0) are called rational numbers.

Question: 11

Define prime numbers.       

Ans : The numbers which have only two factors are called prime numbers. 2 is the smallest prime number and is the only even prime.

Question: 12

What is the smallest odd composite number.   

Ans : 9

Question: 13

Product of two number is 1800 if LCM of two number is 180 then what is its H.C.F. 

Ans : 10

Question: 14

Who many prime numbers are there in the counting from 1 to hundred

Ans : 25

Question: 15

What is the area of trapezium whose sum of parallel sides is 17 cm and height of trapezium is 4 cm.

Ans : 34 cm²

Question: 16

What is the total surface area of cylinder whose radius is 2cm and height is 5 cm. 

Ans : 88 cm²

Question: 17

What is the  diagonal of cube of side 3 cm.

Ans:    Formula used : 

Question: 18

Expand the identity:-    a³ - b³

Ans : (a - b)(a²  +  b²  +  ab)

Question: 19

What is the area of circle of radius 7 cm 

Ans : 154 cm²

Question: 20

What is  the diagonal of cuboid of dimension 4 cm, 3 cm, 2 cm  

Ans: 

If a, b, c are the dimensions of cuboid then diagonal is given by  

Question:  21

Using suitable identity find the value of:-     (6)³ + (5)³ + ( - 11)³ 

Ans :  - 990

If a + b + c = 0, then a³ + b³ + c³ = 3abc

Question:  22

What is the smallest no. of three digits which is divisible by  11.  

Ans : 110

Question:  23

Expand the identity:-    a³ + b³   

Ans : (a + b)(a² + b² – ab)

Question:  24

What is the common formula used for finding the area of square and rhombus.

Ans :  

Question:  25

What is the sum of all exterior angles of a regular hexagon (or polygon).

Ans : 360^o

Question:  26

What is measure of each interior angle of regular hexagon. 

Ans : [120^o] Formula used : 

Question:  27

What we call the  point that lies on all the diameters of the circle. 

Ans : Centre of the circle

Question:  28

What is the probability of getting a spade or 10 in a deck of 52 playing cards.

Ans : 16/52

Explanation: Number of spade = 13

No. of 10 other than spade = 3

P(spade or 10) = 16 / 52

Question:  29

What is the sum of all interior angles of a regular heptagon  (side 7)

Ans : (n - 2) x 180 = 900^o (here n = 7)

Question:  30

Find the class mark of the class interval    156 – 188 

Ans : 172    

Question:  31

Find the class size of the class interval    156 – 188 

Ans : 32 ( Upper Limit - Lower Limit )

Question:  32

How many diagonals an octagon can have ? 

Ans : [20] Formula used :  

Question:  33

Expand the identity:-    a³ + b³ + c³ - 3abc  

Ans : (a + b + c)(a² + b² + c² – ab – bc - ca)

Question:  34

What is the formula of finding mode of the grouped data. 

Ans :  

Question:  35

What is the probability of finding at least  two tails when three coins are tossed.

Ans : 4/8 or 1/ 2

Question:  36

What angle is the  50 %  of its complementary.

Ans : 30^o

Question:  37

What is the probability of getting face card or ace card.

Ans : 16/52 

No. of face card = 12, No. of ace card = 4

Question:  38

What is the special name of the quadrilateral whose all sides are equal but diagonals are not equal.  

Ans : Rhombus

Question:  39

Define Altitude of the triangles.

Ans : It is the line segment from the vertex of a tringle and is perpendicular to the opposite side.

Question:  40

What is the probability of getting a queen or a black card in a deck of 52 playing cards. 

Ans : 28/52 

Number of black cards = 26

No. of red queen = 2

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