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

Q: Problem: the number of boxes in a warehouse can be divided evenly into 7 equal shipments by boat or 28 equal shipments by truck . what is the smallest number of boxes that could be in the warehouse ?

A: 28
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Q: Problem: if 5 a = 3125 , then the value of 5 ( a - 3 ) is :

A: 25
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Q: Problem: in a box of 9 pens , a total of 3 are defective . if a customer buys 2 pens selected at random from the box , what is the probability that neither pen will be defective ?

A:
5 / 12
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