作者pilichat (人生需要不断冒险)
看板GMAT
标题[计量] pp2-DS-86
时间Tue Nov 17 23:33:22 2009
86. 7962-!-item-!-187;#058&005867
Do more than 50 percent of the children in a certain group have brown hair?
(1) 70 percent of the boys in the group have brown hair.
(2) 30 percent of the children in the group are girls with brown hair.
请教一下这题可以列式解吗？
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