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

### Instruction:
Chenny bought 9 plates at $2 each. She also bought spoons at $1.50 each. How many spoons did Chenny buy if she paid a total of $24 for the plates and spoon?

### Response:
 เชนนี่จ่าย $24 - $18 = $<<24-18=6>>6 สำหรับช้อน
ดังนั้น เธอซื้อช้อน $6/$1.50 = <<6/1.5=4>>4 ช้อน