作者Nathalie2000 (Nathalie)
看板GMAT
标题[计量]OG-PS-167 我有一个盲点
时间Wed Feb 4 12:05:21 2009
In a mayoral election, Candiate X received 1/3 more votes than Candidate Y,
and Candidate Y received 1/4 fewer votes than Candidate Z. If Candidate Z
received 24,000 votes, how many votes did Candidate X received?
这是一题不难的题目
但是我却有一个盲点
照理来说从候选人Y先下手 根据题目y=3/4z (详解的解释)
但是我第一次做的时候
却解成 y+1/4y=z 也就是5/4y=z
但是这样答案就错啦
我的想法到底是哪里不对了呢
p.s从小是数学白痴
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