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

### Instruction:
Jack, who weighs 60 pounds, wants to play on the see-saw with his cousin Anna, who weighs 40 pounds. How many 4-pound rocks does Jack need to hold to make their weights equal?

### Response:
 Jack anahitaji kushikilia mawe ya pauni 4 ili uzito wake uwe sawa na wa Anna. Anna ana uzito wa pauni 40 na Jack ana uzito wa pauni 60.
Ili kupata idadi ya mawe ya pauni 4 ambayo Jack anahitaji kushikilia, toa 40 kutoka 60 na kisha ugawanye na 4:
(60 - 40) / 4 = <<(60-40)/4=10>>10 mawe