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

### Instruction:
 海莉比杰森多5条项链。乔希的项链数量是杰森的一半。如果海莉有25条项链，她比乔希多几条项链？


### Response:
 杰森有25-5 = <<25-5=20>>20条项链。
乔希有20/2 = <<20/2=10>>10条项链。
海莉比乔希多15条项链。