MCQ Questions

Question No. 1

Fill in the blanks:

Answer :

(a) The world ________ gives the order in which various operations are performed.

(b) In BODMAS, B stands for _______.

(c) In BODMAS, O stands for ________.

Question No. 2

True or False:

Answer :

(a) In BODMAS, M stands for multiplication.

(b) In BODMAS, S stands for sum.

(c) In BODMAS, D stands for division.

Question No. 3

One word answer:

Answer :

(a) What is the HCF of 120 and 144?

(b) What is the HCF of Co-prime number?

(c) Does every number is a multiple of itself?

Question No. 4

Find the value of :

Answer :

(i) 150 – 30 ÷ 5

(ii) 25 + 40 ÷ 4

(iii) 7 × 3 – 4 + 60 ÷ 10

(iv) 30 + 14 ÷ 2

(v) 48 ÷ (5 + 7)

(vi) 8 × 5 – 15 ÷ 5 + 7

Question No. 5

Simplify :

Answer :

(i) 20 – (10 + 2 – 3)

(ii) 7 – (6 + 4 – 8)

(iii) 100 – {60 – 2 of (25 – 15)}

(iv) 70 + 2 × 5 + 3 of 10 – 60 ÷ 6

(v) 128 – [56 – {3 × 5 + ( 19 – 2 of 3)}]

(vi) [20 – 2 (5 – 4)] × {3 – (5 – 3)}

Question No. 6

. Write all the factors of the following numbers :

Answer :

(i) 24

(ii) 60

(iii) 36

(iv) 21

(v) 27

(vi) 125

(vii) 144

(viii) 64

Question No. 7

Write the first five multiples of

Answer :

(i) 6

(ii) 12

(iii) 8

(iv) 16

(v) 5

(vi) 7

(vii) 19

(viii) 25

Question No. 8

Match the items in column I with the items in column II.

Answer :

Question No. 9

Solve:

Answer :

Find all the multiples of 8 between 60 and 100.

Question No. 10

Check the following for being prime or composite :

Answer :

23, 26, 31, 51, 109.

Question No. 11

Express each of the following numbers as the sum of two odd primes.

Answer :

(i) 36

(ii) 98

Question No. 12

Express each of the following odd numbers as the sum of twin primes.

Answer :

(i) 84

(ii) 120

Question No. 13

Express each of the following numbers as the sum of these odd prime numbers.

Answer :

(ii) 35

(i) 49

Question No. 14

State True or False :

Answer :

(i) All even numbers are composite.

(ii) Odd numbers cannot be composite.

(iii) The product of prime numbers cannot be prime.

(iv) 1 is the smallest prime number.

(v) A number and its successor are always co-prime.

Question No. 15

Using divisibility test, determine which of the following numbers are divisible by 2.

Answer :

Question No. 16

In each of the following, fill in the blanks with the smallest digit to make it divisible by 3 :

Answer :

(i) – 6724

(ii) 75 – 3

(iii) 135 – 8

(iv) 206 – 38

Question No. 17

In each of the following, fill in the blanks with the smallest digit to make it divisible by 9 :

Answer :

(i) 487 – 6

(ii) 41 – 67

(iii) 60 – 12

(iv) 7 – 0514

Question No. 18

Express the following as a product of Prime factor :

Answer :

(i) 84

(ii) 216

(iii) 150

(iv) 725

(v) 230

(vi) 13310

(vii) 2145

(viii) 160

Question No. 19

Find the common factors of :

Answer :

(i) 12 and 15

(ii) 10 and 28

(iii) 15 and 25

(iv) 56 and 120

(v) 8, 12, and 15.

Question No. 20

Find first three common multiples of :

Answer :

(i) 2 and 4

(ii) 5 and 7

Question No. 21

Find the HCF of the following numbers :

Question No. 22

Find the HCF of the numbers in each of the following , using the division method:

Answer :

(i) 58, 70

(ii) 1045, 1520

(iii) 658, 940, 1128

(iv) 858, 1562, 1870

(v) 540, 696

(vi) 136, 170, 255

Question No. 23

Determine L.C.M of the given numbers in each of the following :

Answer :

(i) 36, 60

(ii) 72, 90

(iii) 15, 30, 90

(iv) 28, 15, 42

(v) 62, 94

(vi) 45, 90, 150

Question No. 24

Determine the LCM of the following numbers by common division method :

Answer :

(i) 88, 64

(ii) 24, 27, 30, 90

(iii) 20, 25, 30

(iv) 12, 15, 20, 27

(v) 22, 54, 108, 135, 198

(vi) 32, 56, 46

Question No. 25

— is known as ________.

Answer :

line bracket

bar

both of these

Question No. 26

Using divisibility test, determine which of the following numbers are divisible by 6 :

Answer :

(i) 297144

(ii) 1258

(iii) 4335

(iv) 901352

(v) 2832

(vi) 4452

(vii) 12583

(viii) 639210

Question No. 27

( ) are known as _________ bracket, also called first bracket.

Answer :

common

uncommon

perfect

Question No. 28

{ } are known as curly bracket, also called ________ bracket.

Answer :

first

second

none of these

Question No. 29

[ ] are know as square bracket, also called _________ bracket.

Answer :

first

second

third

Question No. 30

Using divisibility test, determine which of the following numbers are divisible by 4 and by 8 :

Answer :

(i) 572

(ii) 726352

(iii) 5500

(iv) 1700

(v) 6000

(vi) 12159

(vii) 14560

(viii) 21084

Question No. 31

Using divisibility test, determine which of the following numbers are divisible by 11:

Answer :

(i) 5445

(ii) 7138965

(iii) 10824

(iv) 70169308

(v) 10000001

(vi) 901135

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