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 120 crayons in a box.  One third of the crayons are new, 20% are broken, and the rest are slightly used.  How many are slightly used?

### Response:
 Mpya: 120/3 = <<120/3=40>>40
Zimevunjika: 120(.20) = 24
Zimetumika kidogo: 120 - 40 - 24 = <<120-40-24=56>>56