问题标题:
JsckistwiceasoldasJill,butinfiveyearstimehewillonlybeoneandJsckistwiceasoldasJill,butinfiveyearstimehewillonlybeoneandahalftimesoldasJill.HowoldareJackandJillnow/
问题描述:

JsckistwiceasoldasJill,butinfiveyearstimehewillonlybeoneand

JsckistwiceasoldasJill,butinfiveyearstimehewillonlybeoneandahalftimesoldasJill.HowoldareJackandJillnow/

廖华明回答:
  Jsck应该是Jack吧   设Jack=x,Jill=y   x=2y   x+5=1.5*(y+5)   解方程组   得X=10   Y=5   所以Jack现在10岁,Jill现在5岁.
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