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

### Instruction:
John decides to get the vaccine for COVID.  He has to wait 20 minutes for the first dose.  The second dose has a wait time half as long.  How long was the total wait time?

### Response:
 Dozi ya pili ilikuwa na muda wa kusubiri wa 20/2=<<20/2=10>>10 dakika
Hivyo muda wa kusubiri jumla ni 20+10=<<20+10=30>>30 dakika