还有一个股市卖股票,某日3/4是domestic股,那天所有卖掉的里面2/3卖给公司,其余卖给个人。问至少多少domestic股卖给了个人? DS: xy>0 ? 1.x-y>x 2. x+y<y can someone please explain it to me? 说是一共有$340 million 的股票份额,其中DOMESTIC SHARE占3/4, 企业 SHARE 2/5,问非企业(个人)的INTERNATIONAL SHARE AT LEAST有多少MILLION? 答案是51 确定。 I think the answer should be "0" D(domestic)-255 I(international)-85 E(enterprise)-136 I(individual) -124 Individual's shares sold to international market, at least can be 0, because individual shares total to 124 and domestic can have at most 124 individual shares. can anyone please check my answer? thanks -- by 会员 txsnowsea (2011/1/19 13:14:10)
对,这题我漏了一条件,那天一共买了多少股是知道的。就算是n股好了。 最少卖给个人:n*(3/4-2/3)
3/4跟2/3这两个数相当确定,我考的题就是这两比例。 |