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  1. The HCF of two numbers is 15 and their LCM is 225. If one of the numbers is 75, then find the another number.
    1. 105
    2. 90
    3. 60
    4. 45
Correct Option: D

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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