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

### Instruction:
There have been 15 "Where's Waldo?" books published. Each book has 30 puzzles to find Waldo. The average person takes 3 minutes to find Waldo in a puzzle. How long would it take to find every Waldo?

### Response:
 มีปริศนาทั้งหมด 450 ปริศนาในการหา Waldo
ใช้เวลาทั้งหมด 1,350 นาทีในการหา Waldo ทั้งหมดเพราะ 450 x 3 = <<1350=1350>>1,350