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

A120

B112

C105

D84

Answer:

C. 105

Read Explanation:

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


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