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

### Instruction:
Edmund owns a gift wrapping shop, he uses 18 inches of gift wrapper per gift box. If Edmund has 90 inches of gift wrapper per day, how many gift boxes will he be able to wrap every 3 days?

### Response:
 90 inchi kwa siku / 18 inchi kwa sanduku = 5 sanduku za zawadi kwa siku
5 sanduku za zawadi kwa siku x 3 siku = <<5*3=15>>15 sanduku za zawadi.