HCF and LCM -Multiple Choice Questions Quiz

Interactive MCQs on the topic “HCF and LCM”:

Solve the following 10 questions: Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1: What is the HCF of 36 and 48?

(a) 6
(b) 8
(c) 12
(d) 18

Question 2: If the LCM of two numbers is 72, and one of the numbers is 8, what is the other number?

(a) 6
(b) 9
(c) 12
(d) 18

Question 3: The HCF of two numbers is 15, and their LCM is 120. If one of the numbers is 30, what is the other number?

(a) 6
(b) 8
(c) 12
(d) 18

Question 4: If the HCF of two numbers is 5, and their LCM is 60, what is the product of the two numbers?

(a) 75
(b) 100
(c) 120
(d) 150

Question 5: The HCF of two numbers is 9, and their LCM is 63. If one number is 21, what is the other number?

(a) 7
(b) 9
(c) 12
(d) 18

Question 6: If the LCM of two numbers is 40, and one of the numbers is 8, what is the other number?

(a) 4
(b) 5
(c) 10
(d) 15

Question 7: The HCF of two numbers is 14, and their sum is 42. What are the two numbers?

(a) 14, 28
(b) 18, 24
(c) 21, 21
(d) 10, 32

Question 8: If the HCF of two numbers is 3, and their LCM is 45, what is the difference between the two numbers?

(a) 9
(b) 12
(c) 15
(d) 18

Question 9: The HCF of two numbers is 7, and their difference is 21. What are the two numbers?

(a) 14, 7
(b) 28, 7
(c) 21, 0
(d) 35, 14

Question 10: The LCM of two numbers is 36, and their ratio is 3:4. What are the two numbers?

(a) 9, 12
(b) 12, 16
(c) 15, 20
(d) 18, 24


Question 1: What is the HCF of 36 and 48?

(a) 6
(b) 8
(c) 12
(d) 18

Question 2: If the LCM of two numbers is 72, and one of the numbers is 8, what is the other number?

(a) 6
(b) 9
(c) 12
(d) 18

Question 3: The HCF of two numbers is 15, and their LCM is 120. If one of the numbers is 30, what is the other number?

(a) 6
(b) 8
(c) 12
(d) 18

Question 4: If the HCF of two numbers is 5, and their LCM is 60, what is the product of the two numbers?

(a) 75
(b) 100
(c) 120
(d) 150

Question 5: The HCF of two numbers is 9, and their LCM is 63. If one number is 21, what is the other number?

(a) 7
(b) 9
(c) 12
(d) 18

Question 6: If the LCM of two numbers is 40, and one of the numbers is 8, what is the other number?

(a) 4
(b) 5
(c) 10
(d) 15

Question 7: The HCF of two numbers is 14, and their sum is 42. What are the two numbers?

(a) 14, 28
(b) 18, 24
(c) 21, 21
(d) 10, 32

Question 8: If the HCF of two numbers is 3, and their LCM is 45, what is the difference between the two numbers?

(a) 9
(b) 12
(c) 15
(d) 18

Question 9: The HCF of two numbers is 7, and their difference is 21. What are the two numbers?

(a) 14, 7
(b) 28, 7
(c) 21, 0
(d) 35, 14

Question 10: The LCM of two numbers is 36, and their ratio is 3:4. What are the two numbers?

(a) 9, 12
(b) 12, 16
(c) 15, 20
(d) 18, 24