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

### Instruction:
 Bob na Jim wameamua kuruka mawe. Bob anaweza kuruka jiwe mara 12. Jim anaweza kuruka jiwe mara 15. Ikiwa kila mmoja wao aliruka mawe 10, jumla ya mara ngapi waliruka?


### Response:
 Bob aliruka mara 12*10=<<12*10=120>>120
Jim aliruka mara 15*10=<<15*10=150>>150
Hivyo jumla ya mara waliruka ni 120+150=<<120+150=270>>270