作者richertkk (黄家大少)
看板GMAT
标题[问题] 请问数学JJ264
时间Tue Dec 2 23:04:15 2008
JJ:264
shop X sells brand A 3 times than brand B, they make 80% profit on brand A and
20% profit on brand B, what's the total profit percentage compared to the total
purchase price ?
想请问一下解题的思路
卖出的量是 3:1
获利比是 4:1
怎麽获利和成本比呢??
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