## Task 1 - 130521

A fishing cooperative had caught only pike, bass, and perch on a certain day. In total, there were 125 perch. Furthermore, there were twice as many bass as pike; the number of pike was one-fifth of the number of perch.

Determine how many fish the fishing cooperative caught in total on that day!
Since the number of pike was one-fifth of the number of perch, exactly 25 pike were caught. According to the problem, there were twice as many bream as pike, so exactly 50 bream. Because $125+25$ $+50=200$, a total of 200 fish of the mentioned species were caught.