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

### Instruction:
A certain kind of wild mushroom has either spots or gills, but never both. Gilled mushrooms are rare, with only one growing for every nine spotted mushrooms that grow. A fallen log had 30 mushrooms growing on its side. How many gilled mushrooms were on the fallen log’s side?

### Response:
 มีเห็ดที่มีเกล็ด 1 ต้นสำหรับทุก 1 + 9 = 10 เห็ด
ดังนั้น ซอกล้วนมีเห็ดที่มีเกล็ด 30 / 10 = <<30/10=3>>3 ต้น.