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

### Instruction:
 Iris ana shamba la matunda. Ndugu yake wa kike na wa kiume wanamsaidia kuvuna matunda na kuyauza sokoni. Iris alivuna matunda 30 ya bluberi, dada yake alivuna matunda 20 ya cranberi, na kaka yake alivuna matunda 10 ya rasberi. Ikiwa 1/3 ya matunda yote waliyovuna ni yaliyooza na 1/2 ya matunda safi yanahitaji kuhifadhiwa, matunda mangapi wataweza kuyauza?


### Response:
 Idadi ya matunda ya bluberi na cranberi ni 30 + 20 = <<30+20=50>>50.
Ukiongeza matunda ya rasberi, idadi ya matunda yote ni 50 + 10 = <<50+10=60>>60.
Matunda yaliyooza ambayo yanahitaji kutupwa ni (1/3) x 60 = <<(1/3)*60=20>>20.
Idadi ya matunda safi ni 60 - 20 = <<60-20=40>>40.
Matunda ambayo wanahitaji kuyahifadhi ni (1/2) x 40 = <<40*1/2=20>>20.
Hivyo, idadi ya matunda watakayoweza kuyauza ni 40 - 20 = <<40-20=20>>20.