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

### Instruction:
Yolanda leaves home for work at 7:00 AM, riding her bike at 20 miles per hour. 15 minutes after she leaves, her husband realizes that she forgot her lunch, and jumps in the car to bring it to her. If he drives at 40 miles per hour and follows the exact same route as Yolanda, how many minutes will it take him to catch her?

### Response:
 Ili kupata umbali Yolanda anasafiri kwa dakika 15, tunazidisha kasi yake ya kusafiri na idadi ya dakika anazosafiri: maili 20/saa * dakika 15 = <<20*15=300>>300 yardi.
Ili kupata umbali mumewe anasafiri kumfikia, tunazidisha kiasi sawa: maili 40/saa * dakika 15 = <<40*15=600>>600 yardi.
Tofauti kati ya umbali hizi mbili ni muda anachomchukua mumewe kumfikia: 600 yardi - 300 yardi = <<600-300=300>>300 yardi.
Tunabadilisha umbali huu kuwa dakika kwa kugawanya na kasi ya Yolanda: 300 yardi / maili 20/saa = <<300/20=15>>15 dakika.