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The HCF of two numbers is 15 and their LCM is 225. If one of the numbers is 75, then find the another number.

105
90
60
45

Correct Answer: 45

Explanation:

Let the other number = N
Product of LCM and HCF = Product of two numbers
Then, N x 75 = 15 x 225
∴ N = (15 x 225)/75 = 45

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