 
<translate> Olaf yana da akwatin kifaye. Yana da kifi a launuka uku daban-daban: orange, kore, da shuɗi. Kifi mai launin shuɗi ya zama rabin dukkan kifayen da ke cikin akwatin kifaye. Akwai kifin orange 15 da suka rage fiye da na shudi. Kifi nawa ne masu launin kore idan adadin kifi a cikin akwatin kifaye ya kai 80? Wani tunani? Dalili na mataki zuwa mataki: <eng> Olaf has an aquarium. He has fish in 3 different colors: orange, green, and blue. Blue fish make up half of all the fish in the aquarium. There are 15 fewer orange fish than blue fish. How many green fish are there when the total number of fish in the aquarium is 80?
Thoughts? Step-by-step reasoning: 