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

### Instruction:
Ken had fifty pencils, and he wanted to share some of them with his two friends, Manny and Nilo. Ken gave ten pencils to Manny and ten more pencils to Nilo than he gave to Manny. He kept the rest of the pencils. How many pencils did Ken keep?

### Response:
 Nilo alipokea 10 + 10 = <<10+10=20>>20.
Hivyo, Ken alitoa jumla ya 10 + 20 = <<10+20=30>>30.
Hivyo, Ken alihifadhi madaftari 50 - 30 = <<50-30=20>>20.