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

Q: Problem: how many prime numbers are between 51 / 13 and 89 / 9 ?

A: 2
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Q: Problem: a room 5 m 55 cm long and 3 m 74 cm broad is to be paved with square tiles . find the least number of square tiles required to cover the floor ?

A: 17
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Q: Problem: solution a is 30 % salt and solution b is 80 % salt . if you have 30 ounces of solution a and 60 ounces of solution b , in what ratio could you mix solution a with solution b to produce 50 ounces of a 50 % salt solution ?

A:
3 : 
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