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

### Instruction:
 Bwana Maxwell huchukua saa 1 kuendesha kwenda kazini asubuhi lakini saa 1 na nusu kuendesha kurudi nyumbani jioni. Ikiwa trafiki ya asubuhi na jioni ni sawa na anaendesha kwa kasi ya wastani ya maili 30 kwa saa asubuhi, kasi wastani ya safari yake ya kurudi ni ipi?


### Response:
 Bwana Maxwell huchukua saa 1 kuendesha kwenda kazini asubuhi, ambayo ni maili 30.
Jioni, Bwana Maxwell huchukua saa 1 na nusu kuendesha kurudi nyumbani, ambayo ni 1.5 * 30 = <<1.5*30=45>>45 maili.
Hivyo, kasi wastani ya Bwana Maxwell ni (30 + 45) / 2 = <<(30+45)/2=37.5>>37.5mph.