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

### Instruction:
Melinda is taking a 1200-mile trip with her family to visit their cousins. How much time will they save if they drive 60 miles an hour instead of 50 miles an hour?

### Response:
 Kwa kwenda kwa kasi ya maili 60 kwa saa, safari itachukua safari ya maili 1200 / (maili 60 kwa saa) = <<1200/(60)=20>>20 masaa.
Kwa kwenda kwa kasi ya maili 50 kwa saa, safari itachukua safari ya maili 1200 / (maili 50 kwa saa) = <<1200/(50)=24>>24 masaa.
Tofauti ya muda ni 24 - 20 = <<24-20=4>>4 masaa.