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

### Instruction:
James has to refuel his plane.  It used to cost $200 to refill the tank.  He got an extra tank to double fuel capacity.  Fuel prices also went up by 20%.  How much does he pay now for fuel?

### Response:
 Gharama ya kujaza tangi imepanda 200*.2=$<<200*.2=40>>40
Hivyo inagharimu 200+40=$<<200+40=240>>240 kujaza tangi
Kwa kuwa sasa ana tangi 2 inagharimu 240*2=$<<240*2=480>>480 kujaza tangi zote.