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

Q: Problem: a dishonest dealer professes to sell goods at the cost price but uses a weight of 800 grams per kg , what is his percent ?

A: 25 %
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Q: Problem: in a maths test , students were asked to find 5 / 16 of a certain number . one of the students by mistake found 5 / 6 th of that number and his answer was 150 more than the correct answer . find the number .

A: 288
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Q: Problem: what least number must be added to 696 , so that the sum is completely divisible by 20 ?

A:
4
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