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(1) During the sale, the total revenue from the sale of these sweaters was $270. (2) During the sale, the store sold each of these sweaters at a price that was 50% greater than the store's cost to purchase each sweater. OA C Source: GMAT Prep GMAT/MBA Expert GMAT Instructor Joined 25 May 2010 Posted: 15019 messages Followed by: 1859 members Upvotes: 13060 GMAT Score: 790 Top Reply BTGmoderatorDC wrote: During a one day sale, a store sold each sweater of a certain type for$30 more than the store's cost to purchase each sweater. How many of thses sweaters were sold during the sale?

(1) During the sale, the total revenue from the sale of these sweaters was $270. (2) During the sale, the store sold each of these sweaters at a price that was 50% greater than the store's cost to purchase each sweater. Statement 1: Case 1: 1 sweater is sold for$270
Case 2: 3 sweaters are sold for $90 each Since the number of sweaters sold can be different values, INSUFFICIENT. Statement 2: Since the$30 markup is 1/2 the cost of each sweater, the cost of each sweater = 60.
Thus, the selling price of each sweater = 60+30 = 90.
No way to determine how many sweaters were sold.

Statements combined:
Since the total revenue = 270 and the selling price of each sweater = 90, the number of sweaters sold = 270/90 = 3.
SUFFICIENT.

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