MCQ Questions

Question No. 1

Write down the factors of the following numbers.

Answer :

a) 14

b) 72

c) 87

d) 84

e) 49

f) 57

Question No. 2

Which of the numbers above have only two factors?

Answer :

Question No. 3

Find the HCF of each pair of numbers.

Answer :

a) 6, 12

b) 8, 25

c) 24, 60

d) 100, 45

e) 33, 77

f) 24, 64

Question No. 4

Write down multiples and LCM as directed.

Answer :

a) Write down the first six multiples of the number 6.

b) Write down the first six multiples of the number 9.

Question No. 5

Find the LCM of the following groups of numbers.

Answer :

a) 8, 12

b) 9, 12

c) 5, 8

d) 4, 12

e) 12, 20

f) 10, 16

g) 9, 15

h) 84, 112 and 168

Question No. 6

From the numbers {1, 2, 3, 4, 7, 9, 12, 18, 19, 24, 27, 48, 80, 84, 92} select the following groups of numbers.

Answer :

a) factors of 27

b) multiples of 4

c) prime numbers

Question No. 7

Write the prime factors of 36.

Answer :

Question No. 8

Write the prime factors of 45.

Answer :

Question No. 9

Use a ladder to express each number below as a product of primes.

Answer :

a) 600

b) 627

c) 693

Question No. 10

List the factors of the following numbers.

Answer :

a) 12 and 36

b) 18 and 24

c) 35 and 70

d) 36 and 42

e) 40 and 80

f) 72 and 48

g) 75 and 50

Question No. 11

Determine the HCF of the following numbers.

Answer :

a) 16 and 24

b) 48 and 72

c) 60 and 48

d) 80 and 72

e) 64 and 48

f) 45 and 27

g) 168 and 144

Question No. 12

Express the numbers 300 and 90 as products of prime factors

Answer :

Question No. 13

Express the numbers 126 and 60 as products of prime factors.

Answer :

Question No. 14

Determine the LCM of these numbers.

Answer :

a) 48 and 72

b) 42 and 70

c) 105 and 63

d) 72 and 120

e) 18, 30 and 42

f) 12, 4 and 6

g) 12, 24 and 6

h) 20, 5 and 10

Question No. 15

Tayo and Banke went to the movies. They bought the same number of tickets. Tayo bought them in packs of 7, and Banke bought them in packs of 20. What is the smallest possible number of tickets they each bought?

Answer :

Question No. 16

In preparation for a party, Dele is putting desserts onto platters. The chocolate cake is cut into 12 pieces and the cheesecake is cut into 18 pieces. If he wants to prepare identical platters without having any cake left over, what is the greatest number of platters he can prepare?

Answer :

Question No. 17

Yetunde bought equal numbers of peanuts and walnuts at the store. The peanuts came in packs of 13. The walnuts came in packages of 18. What is the smallest number of walnuts that she could have bought?

Answer :

Question No. 18

Find the longest length of rope which could be used to measure any of the following lengths accurately: 45 cm, 75 cm and 81 cm, without any rope left over.

Answer :

Question No. 19

The length, breadth and height of a room are 6 m, 5 m and 3 m respectively. Find the longest tape which can measure the dimensions of the room exactly.

Answer :

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