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标题: gwd-25-23 [打印本页]

作者: peiyangzhe    时间: 2006-6-8 12:58     标题: gwd-25-23

Q23.At a fruit stand yesterday, the price of each apple was $0.10 more than the price of each orange. What was the total revenue from the sale of oranges at the fruit stand yesterday?

(1) The number of oranges sold at the fruit stand yesterday was 5 more than the number of apples.

(2) The total revenue from the sale of apples at the fruit stand yesterday was $15.00

Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient

l Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient

l BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

l EACH statement ALONE is sufficient

l Statements (1) and (2) TOGETHER are NOT sufficient

答案c,我觉得是e,2个条件知道了还是算不出来阿


作者: oldersea    时间: 2006-6-9 21:10

x = price of apple
x + 0.1 = price of orange
y = # of orange sold
z = # of apple sold
revenue of orange = (x+0.1) * y
revenue of apple = x * z

condition 1) y - z = 5
condition 2) x * z = 15

2 equations, 3 unknowns => inconclusive

E






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