Artists and paintings #56

Answer is 5/2 artists required to make 25 paintings in 25 day.
How?
If 5/2 artists make 5/2 paintings using 5/2 canvas in 5/2 days,
We can say that 5/2 artists make 1 painting using 1 canvas in 1 day.(its not 1 artist, most people do this mistake).

From above we can say 5/2 artists can make 25 paintings using 25 canvases in 25 days.