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

Q: Problem: how many zeroes are there at the end of the number n , if n = 100 ! + 200 ! ?

A: 2
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Q: Problem: tourist purchased a total of 30 travelers checks in $ 50 and $ 100 denominations . the total worth of the travelers checks is $ 1800 . how many checks of $ 50 denominations can he spend so that average amount ( arithmetic mean ) of the remaining travelers checks is $ 100 ?

A: 2
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Q: Problem: a dishonest dealer professes to sell goods at the cost price but uses a weight of 920 grams per kg , what is his percent ?

A:
8.7 
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