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

### Instruction:
Mark has 3 tanks for pregnant fish.  Each tank has 4 pregnant fish and each fish gives birth to 20 young.  How many young fish does he have at the end?

### Response:
 เขามีปลาตัวเมียที่ตั้งครรภ์ 12 ตัว
พวกเขาคลอดลูก 20*12 = <<20*12=240>>240 ตัว