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

### Instruction:
In a studio audience of 100 people, 40% of these people have an envelope taped underneath their chairs.  20% of these people will have "You Won" in their envelope, the rest will have empty envelopes.  How many people will win a prize?

### Response:
 มี 40 คนที่จะพบซองจดหมายอยู่ใต้เก้าอี้ของพวกเขา
มี 8 คนที่จะพบซองจดหมายที่บอกว่า "คุณชนะ"