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

### Instruction:
 Shuleni, 40% ya wanafunzi hupata chakula cha mchana bure. Chakula hiki hulipwa kwa kuhakikisha bei inayolipwa na wanafunzi wanaolipa inatosha kufunika chakula cha kila mtu. Ikiwa inagharimu $210 kumlisha wanafunzi 50, wanafunzi wanaolipa hulipa kiasi gani kwa chakula cha mchana?


### Response:
 Ikiwa 40% ya wanafunzi hupata chakula cha mchana bure, na 100-40=<<100-40=60>>60% ya wanafunzi hulipa kwa chakula cha mchana, kuna wanafunzi 50*60/100=<<50*60/100=30>>30 wanaolipa kwa chakula cha mchana.
Wanafunzi hawa hulipa $210/30=<<210/30=7>>7 kwa chakula chao cha mchana.