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

### Instruction:
Gunner has a box of mittens with 20 fewer pairs than a box of plugs. He decides to put 30 more pairs of plugs into the box of plugs. If the box of mittens has 150 pairs of mittens, how many plugs are there?

### Response:
 Katika sanduku la soksi za mikono, kuna jozi 150, hivyo katika sanduku la plagi, kuna jozi 150+20 = 170 za plagi.
Gunner anachagua kuongeza plagi 30 zaidi katika sanduku la plagi, ambalo sasa lina 170+30 = <<170+30=200>>200.
Kwa kuwa jozi ina mbili, kuna plagi 200*2 = <<200*2=400>>400 katika sanduku.