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

### Instruction:
 艾尔莫有他妹妹劳拉的3倍多的书。劳拉有她弟弟斯图的两倍多的书。如果艾尔莫有24本书，斯图有多少本书？


### Response:
 劳拉有24/3=<<24/3=8>>8本书。
斯图有8/2=<<8/2=4>>4本书。