Question

The H.C.F of two numbers is 7 and their L.C.M is 495. If one of the numbers is 55, find the other?

A 52 Correct Answer Incorrect Answer
B 63 Correct Answer Incorrect Answer
C 45 Correct Answer Incorrect Answer
D 36 Correct Answer Incorrect Answer

Solution

HCF = 7, LCM = 495, a = 55 & b = ? So as we know that a × b = HCF × LCM or 55 × b = 7 × 495 or b = 7 × 495/55 = 3465/55 = 63.

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