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Peter went to the store to buy paint. Small cans cost $30

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by AAPL » Fri May 31, 2019 4:50 am

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Magoosh

Peter went to the store to buy paint. Small cans cost $30 and larger cans cost $80. How many small cans of paint did he buy?

1) Peter spent $220 on paint.
2) Peter bought four cans of paint in total.

OA A
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Source: — Data Sufficiency |

by Ian Stewart » Fri May 31, 2019 6:29 am
Using Statement 1 alone, he can't have bought zero large cans, because 220 is not divisible by 30. He can't have bought one large can, because 140 is not divisible by 30. And he can't have bought 3+ large cans, because then he would have spent more than $220. So he must have bought two large cans, leaving him $60 to spend on two small cans of paint.

Statement 2 is clearly not sufficient alone, so the answer is A.
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