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標題: 小四math, pls help [打印本頁]

作者: Tracyivy 時間: 07-11-7 00:50 標題: 小四math, pls help

a糖數量=b糖數量, a比了2粒糖b後, b=a的2倍, 請問a和b的答案, tks a lot!

作者: Lelu 時間: 07-11-7 09:42

Both a and b have same no. of candy = x.
a gives 2 candies to b = x-2.
b gets 2 candies from a = x+2.
b has 2 times of candy more than a.
2(x-2)=x+2
x=6

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