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

### Instruction:
 Kulikuwa na watoto 140 katika prom ya vijana. Kati yao, robo yao walikuwa wacheza densi. Kati ya wacheza densi, 25 walicheza densi polepole. Wacheza densi wangapi hawakucheza densi polepole?


### Response:
 140/4 = <<140/4=35>>35 ya wanafunzi walikuwa wacheza densi.
35-25 = <<35-25=10>>10 ya wanafunzi wacheza densi hawakucheza densi polepole.