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

### Instruction:
John climbs up 3 flights of stairs.  Each flight is 10 feet.  He then climbs a rope that is half that height.  Finally, he climbs a ladder that is 10 feet longer than the rope.  How high up did he go?

### Response:
 Alikwea futi 3*10=<<3*10=30>>30 za ngazi.
Kisha alikwea futi 30/2=<<30/2=15>>15 za kamba.
Hatimaye, alikwea ngazi ya futi 15+10=<<15+10=25>>25.
Jumla ya urefu aliokwea ni futi 30+15+25=<<30+15+25=70>>70.