It takes 8 painters 6 hours to paint the 2 walls of a gymnasium. How many hours will 4 painters take to paint 4 walls of the gymnasium?

Answer 1

24 hours, for 4 painters to paint 4 walls

It took 8 painters 6 hours to paint 2 walls

4 painters would take twice as long to paint 2 walls, for 12 hours

It would take twice as long for 4 painters to paint 4 walls: 12x 2 = 24 hours