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

### Instruction:
There are 20 cars lined up at a race. Each of the cars have 2 passengers and a driver, then when the cars go past the race’s halfway point, each car gains another passenger. The cars then continue racing, and the race finishes once every single car has passed the finish line. People who get into the cars have to stay inside of them until the race is finished. How many people are in the cars by the end of the race?

### Response:
 Kuna magari 20 mwanzoni mwa mbio, na kila moja lina abiria 2 na dereva, hii inamaanisha kuna abiria 2 + dereva 1 = <<2+1=3>>3 watu katika kila gari mwanzoni mwa mbio.
Hii inamaanisha kuna jumla ya watu 3 kwa kila gari × magari 20 = <<3*20=60>>60 watu katika magari.
Baada ya magari kupita nusu ya mbio, kuna abiria mwingine katika kila gari, hii inamaanisha kuna abiria 2 + dereva 1 + abiria mwingine 1 = <<2+1+1=4>>4 watu katika kila gari.
Hii inamaanisha kuna jumla ya magari 20 * watu 4 kwa kila gari = <<20*4=80>>80 watu katika magari.