JJ76求确认或拍砖

hanlei84921

76.    A dealer buy car at lot of 7 and sell car lot of 3, ask the least number of transaction if increase by 15？

我的理解是这个dealer买车一次性进货7台，卖车一次性出货3三台，要车数增加15台，最少要买3批卖2批，所以答案是5

求确认或拍砖～～～

Fadaways

我猜出题的人出的数字都是比较小的，所以基本就是试一下。

车的总数是增加的。如果进2批的话，只增加了14台，肯定不够。如果进3批的话，多了6台，把它分三次卖掉。如果进三批之后，发现卖几批都得不到想要的结果，就再试进4批。把几种可能性都试一下。虽然说起来很麻烦，实际上肯定是一下子就试出来了，我猜这种题gmat不会出一个特别尴尬的数字。

我看到前几天有一个人贴了另一个版本，是A dealer buy car at lot of 6 and sell car lot of 2, ask the least number of transaction if increase by 14？也是一样的。

tingting520

I asked a friend who worked at a car dealer. your idea is correct.

It means the car dealer buys in 7 cars at one time and sells 3 cars

at one time.

However. at the time you solved the problem. did you pick numbers or

there are steps lead to your answer.

could you please show me your steps if any.