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error on gmat prep?

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by daniyatom » Wed Aug 13, 2008 1:38 pm
a certain group of car dealerships agreed to donate X dollars to a red cross chapter for each car sold during the 30 day period. What was the total amount that was expected to be donated?
(1) a total of 500 cars were expected to be sold
(2) 60 more cars were sold that expected, so that the total amount actually donated was $28,000

Shouldn't the answer be B as statement 2 states clearly that 28000 was donated.

Per GMATprep, the answer is C.

Please advise. thanks
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by ahalex1 » Wed Aug 13, 2008 2:00 pm
The question states what was the expected amount to be donated. The answers give you the actually amount that was donated. Pretty sneaky.
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Re: error on gmat prep?

by aspire750 » Thu Aug 14, 2008 4:09 am
daniyatom wrote:a certain group of car dealerships agreed to donate X dollars to a red cross chapter for each car sold during the 30 day period. What was the total amount that was expected to be donated?
(1) a total of 500 cars were expected to be sold
(2) 60 more cars were sold that expected, so that the total amount actually donated was $28,000

Shouldn't the answer be B as statement 2 states clearly that 28000 was donated.

Per GMATprep, the answer is C.

Please advise. thanks
I think the answer is correct as C
Stm1. Total expected donation=500x which is insufficient to answer.
Stm2. 28000=expected+60x. since we dont know expected this statement is also insufficient
combining 1+2, we get the answer.
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