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

### Instruction:
Bill composes 20 total math questions for money.  Ryan composes twice as many problems as Bill, and Frank composes 3 times as many as Ryan.  Assuming each person has to compose 4 different types of math problems in equal proportion out of the total amount, how many problems of each type does Frank compose?

### Response:
 ไรอันทำข้อสอบคณิตศาสตร์ 2*20=<<2*20=40>>40 ข้อ
แฟรงค์ทำข้อสอบคณิตศาสตร์ 3*40=<<3*40=120>>120 ข้อ
แฟรงค์ต้องส่งข้อสอบประเภทละ 120/4=<<120/4=30>>30 ข้อ