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

Q: Problem: if s and t are both odd prime numbers ands < t , then how many different positive integer factors does 2 sthave ?

A: 8
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Q: Problem: what is the diagonal of a square field whose perimeter is 64 m ?

A: 16 √ 2 m
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Q: Problem: a mobile battery in 1 hour charges to 20 percent . how much time ( in minute ) will it require more to charge to 50 percent .

A:
150
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