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

### Instruction:
 一位厨师需要做薯条。他可以从一个土豆中得到25根薯条。他有15个土豆，他需要200根薯条。他会剩下多少个土豆？


### Response:
 要做200根薯条，他需要200根薯条 / 每个土豆25根薯条 = <<200/25=8>>8个土豆。
他剩下15个土豆 - 8个土豆 = <<15-8=7>>7个土豆。