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

### Instruction:
Jenny and Mark are throwing bottle caps. Jenny's bottlecap flies 18 feet straight, then bounces off a street light and flies another 1/3 of the distance it already went. Mark's bottle cap flies 15 feet forward, then bounces off a window and flies twice as far as it already did. How much further did Mark's bottle cap go than Jenny's?

### Response:
 Kwanza tafuta 1/3 ya umbali ambao vishungi vya Jenny vilikwenda moja kwa moja: mita 18 / 3 = <<18/3=6>>6 mita
Kisha ongeza umbali huo na umbali ambao vishungi viliruka moja kwa moja ili kupata umbali wote uliokwenda: 6 mita + 18 mita = <<6+18=24>>24 mita
Kisha tafuta mara mbili ya umbali ambao vishungi vya Mark vilikwenda moja kwa moja: mita 15 * 2 = <<15*2=30>>30 mita
Kisha ongeza umbali huo na umbali ambao vishungi viliruka moja kwa moja ili kupata umbali wote uliokwenda: 30 mita + 15 mita = <<30+15=45>>45 mita
Kisha toa umbali ambao vishungi vya Jenny vilikwenda kutoka kwenye umbali wote ambao vishungi vya Mark vilikwenda ili kupata tofauti: 45 mita - 24 mita = <<45-24=21>>21 mita