作者dukechiang (go go go)
看板GMAT
标题[计量] PP1-DS-001
时间Thu Aug 27 13:28:03 2009
1. 86-!-item-!-187;#058&000002
A garden store purchased a number of shovels and a number of rakes.
If the cost of each shovel was $14 and the cost of each rake was $9,
what was the total cost of the shovels and rakes purchased by the store?
(1) The ratio of the number of shovels to the number of rakes purchased
by the store was 2 to 3.
(2) The total number of shovels and rakes purchased by the store was 50.
答案是C
但我的思路是由b 可以推出14s +9r=50
则当s 等於1 => r=4 当然也只有这个解 除非答案可以有小数点
如此一来 B就可以解出 不是吗?
OPEN TO DISCUSS!! TKS
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1F：推 giyoshi:你的50变成总支出(单位:元)楼 题目的50是数量(单位:支) 08/27 13:32
2F：→ dukechiang:对喔 谢谢提醒!! 08/27 14:23