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

### Instruction:
It takes Matt 2 minutes per problem to do his math homework with a calculator and 5 minutes per problem without a calculator. If Matt's assignment has 20 problems, how much time will using a calculator save?

### Response:
 Kwanza tafuta tofauti ya muda kwa kila tatizo: dakika 5/tatizo - dakika 2/tatizo = <<5-2=3>>3 dakika/tatizo
Kisha, mnoa tofauti ya muda kwa kila tatizo kwa idadi ya matatizo ili kupata jumla ya tofauti ya muda: 3 dakika/tatizo * matatizo 20 = <<3*20=60>>60 dakika