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

### Instruction:
James wants to build a ladder to climb a very tall tree.  Each rung of the ladder is 18 inches long and they are 6 inches apart.  If he needs to climb 50 feet how many feet of wood will he need for the rungs?

### Response:
 Kila rungu ni inchi 18. Kuna inchi 12 katika mguu, hivyo kila rungu ni 18 / 12 = <<18/12=3/2>>3/2 miguu.
Anahitaji kupanda miguu 50, hivyo anahitaji rungu (50/6) = <<50/6=25/3>>25/3.
Kila rungu ni 3/2 miguu, hivyo urefu jumla wa mbao anahitaji ni (25/3) rungu x (3/2) miguu/rungu = <<25/3*3/2=25/2=12.5>>12.5 miguu.