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

### Instruction:
Colin ran his first mile in 6 minutes.  He ran his next two miles in 5 minutes each and finished his 4th mile in 4 minutes.  What was the average time it took him to run a mile?

### Response:
 Alikimbia maili 4 na maili ya kwanza ilikuwa dakika 6. Maili zake mbili zifuatazo zilikuwa dakika 5 kila moja, hivyo jumla ni 2*5 = <<2*5=10>>10 dakika.
Maili yake ya mwisho ilikuwa dakika 4 na jumla ya muda wake ilikuwa 10+4+6 = <<10+4+6=20>>20 dakika.
Jumla ya muda ulichukua Colin kukimbia maili 4 ilikuwa dakika 20 na alikimbia maili 4, hivyo wastani wa muda ulikuwa 20/4 = <<20/4=5>>5 dakika kwa kila maili.