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

### Instruction:
 约翰去面包店买面包卷。他们以每打5美元的价格出售。他花了15美元。他买了多少个面包卷？


### Response:
 他买了15/5=<<15/5=3>>3打面包卷
这意味着他买了3*12=<<3*12=36>>36个面包卷