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

### Instruction:
 托尼娅参加了一个汉堡比赛。每个汉堡重4盎司。去年的冠军吃了84盎司。她需要吃多少个汉堡才能超过去年的冠军？


### Response:
 去年的冠军吃了21个汉堡，因为84 / 4 = <<84/4=21>>21
她需要吃22个汉堡，因为21 + 1 = <<21+1=22>>22