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

### Instruction:
 乔尔5岁，他爸爸32岁。当他爸爸年龄是他的两倍时，乔尔多大？


### Response:
 乔尔和他爸爸的年龄差是32 - 5 = <<32-5=27>>27岁。
当你把这个年龄差翻倍，你得到27 x 2 = <<27*2=54>>54岁。
当他爸爸是54岁时，乔尔将会是54 / 2 = <<54/2=27>>27岁。