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

### Instruction:
Tom plants a tree that is 1 year old and 5 feet tall.  It gains 3 feet per year.  How old is it when it is 23 feet tall?

### Response:
 Umeongezeka futi 23-5=<<23-5=18>>18
Hivyo una umri wa miaka 18/3=6 zaidi
Hii inamaanisha una umri wa miaka 6+1=<<6+1=7>>7