推 life2002:確實是這樣 我搞錯意思了 謝謝～ 11/29 13:42
※ 引述《AreWeFamily (AreWeFamily)》之銘言：
: ※ 引述《life2002 (dog days)》之銘言：
: : 請大家幫忙做看看
: : GWD的OA答案寫D 我覺得寫錯了
: : (話說回來 我的GWD是兩年前的版本...)
: : 我自己覺得是A
: : There were 2 apples and 5 bananas in a basket. After additional
: : apples and bananas were placed in the basket, the ration of the
: : number of bananas was 1/2. How many apples were added?
: : (1) The number of apples added was 2/3 the number of bananas added.
: : (2) A total of 5 apples and bananas were added.
: Xa=APPLE 增加量 Xb=bananas 增加量
: 2+xa=5+xb
: xa=xb+3 方程式一
根據題目 xa+xb=5 方程式二
解聯立方程式 xb=1 xa=4
: 所以答案選D
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