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

### Instruction:
 Katika idara ya uhandisi, 70% ya wanafunzi ni wanaume na wanawake ni 180. Kuna wanaume wangapi?


### Response:
 Asilimia ya wanawake ni 100% - 70% = 30%.
Kwa kuwa 180 inawakilisha 30%, basi 180/30 = 6 wanafunzi wanawakilisha 1%.
Hivyo, 6 x 70 = <<6*70=420>>420 wanafunzi ni wanaume.