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

### Instruction:
In preparation for the upcoming Olympics, Rita's swimming coach requires her to swim a total of 1,500 hours. Rita has already completed 50 hours of backstroke, 9 hours of breaststroke, and 121 hours of butterfly, but she is unhappy with her inconsistency. She has therefore decided to dedicate 220 hours every month practicing freestyle and sidestroke. How many months does Rita have to fulfill her coach’s requirements?

### Response:
 Rita tayari ameogelea masaa 50 + 9 + 121 = 180 kati ya masaa 1,500 yanayohitajika.
Kwa kuwa Rita anahitaji kuogelea masaa 1,500 - 180 = 1,320 zaidi ili kutimiza lengo la kocha wake.
Lengo la Rita kila mwezi ni masaa 220, kwa hiyo atatimiza lengo la kocha wake katika miezi 1,320/220 = 6.