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

### Instruction:
Elmer has a pond that initially contained 2400 pollywogs, but these pollywogs matured into toads and left the pond at a constant rate of 50 pollywogs per day.  In addition, Elmer has a son named Melvin, who loves to catch pollywogs, remove them from the pond, and release them into a nearby stream.  For the first 20 days, Melvin caught 10 pollywogs per day and released them into the stream.  How many days did it take for all of the pollywogs to disappear from the pond?

### Response:
 Kwa siku 20 za kwanza, kasi ya pamoja ya kuondoka kwa pollywogs kutoka bwawani ni 50+10=<<50+10=60>>60 pollywogs kwa siku.
Katika siku hizo 20 za kwanza, jumla ya pollywogs walioondolewa ilikuwa 60*20=<<60*20=1200>>1200 pollywogs.
Hii itaacha pollywogs 2400-1200=<<2400-1200=1200>>1200 katika bwawa.
Kwa kasi ya kuondoka ya pollywogs 50 kwa siku, itachukua siku nyingine 1200/50=<<1200/50=24>>24 kwa pollywogs wengine kuondoka.
Kwa hivyo, jumla ya siku itachukua ni 20+24=<<20+24=44>>44 kwa pollywogs wote kuondoka katika bwawa.