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 cards in a box. If 2/5 of the cards are red, exactly 5/9 of the remainder are black, and the rest are green, calculate the number of green cards in the box?

### Response:
 Ikiwa kuna kadi 120 katika sanduku, 2/5 ya kadi, yaani 2/5*120 = <<120*2/5=48>>48 kadi ni nyekundu.
120-48 = <<120-48=72>>72 kadi sio nyekundu.
Jumla ya kadi 5/9*72 = <<5/9*72=40>>40 ni nyeusi.
Ikiwa kadi zilizobaki ni kijani, basi kuna kadi 72-40 = <<72-40=32>>32 za kijani katika sanduku.