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

### Instruction:
 卡罗尔在一个展览会上卖票。在三天内，她卖了总值960美元的票。一张票的价格是4美元。她平均每天卖了多少张票？


### Response:
 平均而言，卡罗尔每天卖了960/3=<<960/3=320>>320张票。