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

### Instruction:
 凯拉比贝亚大两倍。乔布比贝亚大三倍。菲加罗比乔布大七岁。哈利比菲加罗小一半。如果凯拉是30岁，哈利多大？


### Response:
 贝亚是30 / 2 = <<30/2=15>>15岁
乔布是15 * 3 = <<15*3=45>>45岁
菲加罗比乔布大7岁，所以他是45 + 7 = <<45+7=52>>52岁
哈利比菲加罗小一半，所以他是52 / 2 = <<52/2=26>>26岁