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

### Instruction:
Ali turned 8 years old this year, and is now 3 years older than Yusaf. If Umar is twice Yusaf’s age, how old is Umar?

### Response:
 Ikiwa Ali ana umri wa miaka 3 zaidi, basi Yusaf lazima awe na miaka 8 - 3 = 5.
Umar ni mara mbili ya umri wa Yusaf, hivyo lazima awe na miaka 5 * 2 = <<2*5=10>>10.