标题: GWD25 23 米有问过的 [打印本页] 作者: ConnieC 时间: 2010-8-6 09:47 标题: GWD25 23 米有问过的 ?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 答案是C，但是我觉得两个条件加起来都推不出来啊，有米有谁能讲讲怎么算的？谢谢作者: tobemoon 时间: 2010-8-6 09:55
我觉得答案有问题吧。。。应该是C吧。。。作者: tobemoon 时间: 2010-8-6 09:56
Number of apples = N Number of oranges = N + 5 Price of each orange = x Price of each apple = x + 0.1
As the number of apples is 5 more than the no of oranges, so the minimum no of apples is 6. 假设苹果卖掉6个or8个 Revenue from the sale of apples = 15=6*2.5 ---1 or 8*1.875-----2
For case 1, revenues for oranges would be 1*2.4 =2.4 Total 2.4+15 = 17.4