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

### Instruction:
Harry uses a whole bag of chocolate chips when he makes dough for chocolate chip cookies. The dough makes three batches of cookies, and each cookie has nine chocolate chips in it. A bag of chocolate chips has 81 chips in it. How many cookies are in a batch?

### Response:
 มีชิปโกโก้ 81 / 3 = <<81/3=27>>27 เม็ดในแต่ละชุด
ดังนั้น มีคุกกี้ 27 / 9 = 3 คุกกี้ในแต่ละชุด