prep 求助那道candy bars的题目，看不懂！（很少吃甜食的，呵呵）

leci

Rasheed bought two kinds of candybars, chocolate and toffee, that came in packages of 2 bars each. He handed out 2/3of the chocolate bars and 3/5 of the toffee bars. How many packages of chocolate bars did Rasheed buy?
(1) Rasheed bought 1 fewer package of chocolate bars than toffee bars.
(2) Rasheed handed out the same number of each kind of candybar.

谢谢牛人帮忙解释下题目的意思和做题思路！

leci

明白啦！多谢！each指的是package，不是那两种bar。

kikisunflower

设买了C包chocolate的，T包toffee的 (C，T为正整数)
这样，chocolate就有2C根，toffee就有2T根
条件（1）即为：C=T-1
条件（2）即为：2/3*2C=3/5*2T

显然条件1或条件2都不能独立的解出题目，但是1、2一起列个方程组，解得出C=9，T=10

leci

我不明白这个包装到底是怎么样？不是说了came in packages of 2 bars each，就是每袋都有两种糖各一bar，那怎么会有只装 巧克力或是太妃的package呢？
这种题很浪费时间阅读，唉