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

### Instruction:
 Kuna mifuko 10 yenye machungwa 30 kila moja kwenye lori. Jumla ya vipande 50 vya machungwa vimeoza. Vipande 30 vya machungwa vitahifadhiwa kwa ajili ya kutengeneza juisi ya machungwa na vingine vitauzwa. Vipande vingapi vya machungwa vitauzwa?


### Response:
 Kuna jumla ya machungwa 10 x 30 = <<10*30=300>>300 kwenye lori.
Jumla ya vipande 50 + 30 = <<50+30=80>>80 vya machungwa havitauzwa.
Hivyo, vipande 300 - 80 = <<300-80=220>>220 vya machungwa vitauzwa.