A clothing store's revenue last May was 6 percent less than its revenue last April. The store's revenue last May was greater than its expenses last May, and the store's revenue last April was greater than its expenses last April. Was the stores gross profit last May less than its gross profit last April?
(1) The stores revenue last May was $2,400 less than its revenue last April.
(2) The stores expenses last May were 4 percent less than its expenses last April.
GMAT Prep DS = A clothing store's revenue last May was 6 per
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OA : B
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Statement 1: The store's revenue last May was $2,400 less than its revenue last April.A clothing store's revenue last May was 6 percent less than its revenue last April. The store's revenue last May was greater than its expenses last May, and the store's revenue last April was greater than its expenses last April. Was the store's gross profit last May less than its gross profit last April?
1) The store's revenue last May was $2,400 less than its revenue last April
2) The store's expenses last May were 4 percent less than its expenses last April
No information about the change in expenses from April to May.
INSUFFICIENT.
Statement 2: The store's expenses last May were 4 percent less than its expenses last April.
Let R = April's revenue and E = April's expenses.
According to the question stem, May's revenue was 6% less: 0.94R.
According to statement 2, May's expenses were 4% less: 0.96E.
Profit = revenue - expenses.
For April's profit to be LESS THAN OR EQUAL TO May's profit, the following would have to be true:
R - E ≤ 0.94R - 0.96E
0.6R ≤ 0.4E
R ≤ (2/3)E.
Not possible: the question stem indicates that R>E.
Since it is not possible that April's profit was less than or equal to May's profit, April's profit must have been GREATER than May's profit.
SUFFICIENT.
The correct answer is B.
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