Question : If the HCF of two numbers is 8, then which of the following can never be their LCM?
Option 1: 56
Option 2: 48
Option 3: 42
Option 4: 40
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Correct Answer: 42
Solution : Since the HCF of two numbers is 8, LCM of the two numbers will only be a multiple of 8. So, the LCM can be 56, 48, and 40 but never be 42. Hence, the correct answer is 42.
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