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 10 cars parked in a mall’s parking lot, each with the same number of customers inside. Each customer only makes 1 purchase. If the sports store makes 20 sales and the music store makes 30 sales, how many customers are in each of the cars?

### Response:
 Ikiwa duka la michezo linafanya mauzo ya 20 na duka la muziki linafanya mauzo ya 30, jumla ya mauzo ni 20 + 30 = <<20+30=50>>50.
Ikiwa kila gari lina idadi sawa ya wateja, na kila mteja anafanya ununuzi mmoja tu, basi kila gari lina wateja 50 / 10 = <<50/10=5>>5.