I think you meant to ask to solve for the amount of time the wheel rotated. You already know the how many times it rotated and the rate at which is is rotating so you need to solve for time
you can write the problem like this
287 revolutions 1 minute
--------------------- x ------------------- = Time
1 25 1/5 revolutions
the revolutions units cancel
287/ 25 1/5 = time
if you convert 25 1/5 to a decimal then you can divide easily
287/25.20=11.388 minutes