※ 引述《thdkuo (thdkuo)》之銘言：
: There are 100 pounds of fruit and water in the fruit is 99% by weight.
: After the fruit are dried and some water evaperates,
: water in the fruit is 98% by weight.
: How does the water weigh after the fruit are dried.
: 答案似乎是50的樣子
: 不過這題到底在問什麼，有點看不懂
: weight應該是重量而不是權數吧???
100磅的裡面有99磅的水
設蒸發了X磅的水
則 (99-X)/(100-X)=0.98
則 X=50
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 218.167.189.249