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

### Instruction:
At the duck park, there are 25 mallard ducks and ten less than twice as many geese as ducks.  Then, a small flock of 4 ducks arrived at the park and joined the birds already there.  If five less than 15 geese leave the park, how many more geese than ducks remain at the park?

### Response:
 Kwa kuanzia, ndege wachache ya mara mbili ya bata ni 25*2=<<25*2=50>>50 ndege.
Hivyo, kuna ndege 50-10=<<50-10=40>>40.
Sasa kuna jumla ya bata 25+4=<<25+4=29>>29 katika bustani.
Ndege 5 wachache ya 15 ni 15-5=<<15-5=10>>10 ndege.
Hivyo, ndege 40-10=30 wanaobaki baada ya ndege 5 wachache ya 15 kuondoka.
Hivyo, kuna ndege 30-29=1 zaidi kuliko bata wanaobaki katika bustani.