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

### Instruction:
Kohen has a business selling apples. Once a week, he orders 10 boxes of apples to add to his stock. If each box has 300 apples and he sells 3/4 of his stock in a certain week, what total number of apples is not sold?

### Response:
 Katika wiki moja, ananunua matofaa 10 * 300 = <<10*300=3000>>3000.
Wakati 3/4 ya hisa inauzwa, idadi jumla ya matofaa yaliyouzwa inakuwa 3/4 * 3000 = <<3/4*3000=2250>>2250.
Idadi ya matofaa yaliyobaki ni 3000 - 2250 = <<3000-2250=750>>750.