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

### Instruction:
Mandy bought 3 packs of black shirts and 3 packs of yellow shirts for her tennis team. The black shirts come in packs of 5, and the yellow shirts come in packs of 2. How many shirts did Mandy buy in all?

### Response:
 จำนวนเสื้อสีดำคือ 3 × 5 = <<3*5=15>>15 ตัว
จำนวนเสื้อสีเหลืองคือ 3 × 2 = <<3*2=6>>6 ตัว
แมนดี้ซื้อเสื้อทั้งหมด 15 + 6 = <<15+6=21>>21 ตัว