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

### Instruction:
For the first hour of work, Manolo can make face-masks at the rate of one every four minutes. Thereafter, he can make face-masks at the rate of one every six minutes. How many face-masks does Manola make in a four-hour shift?

### Response:
 Katika saa ya kwanza, anazalisha 60 / 4 = <<60/4=15>>15.
Katika masaa matatu yajayo, anazalisha 60 / 6 = <<60/6=10>>10 katika kila saa.
Hivyo, katika masaa yaliyosalia ya zamu yake, anazalisha jumla ya 10 * 3 = <<10*3=30>>30.
Hivyo, anazalisha jumla ya 15 + 30 = <<15+30=45>>45.