The task is to generate the correct answer for a given math problem.

Q: Problem: what is the prime factors ’ number of 18 ?

A: 3
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Q: Problem: a train passes a station platform in 30 sec and a man standing on the platform in 20 sec . if the speed of the train is 54 km / hr . what is the length of the platform ?

A: 60 
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Q: Problem: a train covers a distance at a speed of 240 kmph in 5 hours . to cover the same distance in 5 / 3 hours , it must travel at a speed of ?

A:
720
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