The number of positive integral solution of abc=30 is

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Correct answer: B. 27

We have : 30=2 × 3 × 5. So, 2 can be assigned to either a or b or ci.e. 2 can be assigned in 3 ways. Similarly, each of 3 and 5 can be assigned in 3 ways. Thus, the number of solutions is 3 × 3 × 3=27

The number of positive integral solution of abc=30 is

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