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

### Instruction:
Jon decides to take up baseball.  He can throw a fastball at 80 miles per hour.   He goes through intense training 4 times for 4 weeks each time and at the end of the last one he can throw a ball 20% faster.  How much speed (in mph) did he gain per week, assuming he gained an equal amount of speed (in mph) each week?

### Response:
 Alikuwa katika mazoezi kwa wiki 4 * 4 = <<4*4=16>>16
Alitupa mpira kwa kasi ya 80 * 0.2 = <<80*.2=16>>16 maili kwa saa zaidi
Hivyo ameongeza 16/16 = <<16/16=1>>1 maili kwa saa kwa wiki