Question

The LCM of two numbers is 840 and their HCF is 7 . If one of the numbers is 56 , find the other.

• A. 120
• B. 112
• C. 105
• D. 84

Answer 1

Answer:

C. 105

LCM × HCF = Product of the two numbers Let the other number be x LCM × HCF = 56 × x 840 × 7 = 56 × x x = 840 × 7 /56 = 105