Below is an instruction that describes a task. Write a response that appropriately completes the request in Chinese. Please answer in Chinese.

### Instruction:
 玛丽从商店买了六个苹果。从她买的苹果中，她每吃一个苹果，就用剩下的苹果种两棵树。玛丽吃了多少个苹果？


### Response:
 玛丽从她买的六个苹果中种下了四棵树，因为6 x 2/3 = <<6*2/3=4>>4
玛丽吃了两个苹果，因为6 - 4= <<6-4=2>>2