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

### Instruction:
 Samuel花了30分钟完成作业，而Sarah花了1.3小时完成。Samuel比Sarah快了多少分钟？


### Response:
 由于1小时有60分钟，那么1.3小时等于1.3 x 60 = <<60*1.3=78>>78分钟。
因此，Samuel比Sarah快了78 - 30 = <<78-30=48>>48分钟。