One painter can paint a wall in ten minutes. Another painter can
paint it in 6 minutes. About how long will it take both
painters to do the job if they work together? (Assume they don't
get in each other's way!)
As always, be sure to explain the
work you did to arrive
at your answers!
Once again, the best way to solve this problem is to
draw a diagram or picture of the wall. On the picture, show how much
of the wall (in other words, what fraction of the wall)
each painter can paint in one minute. This might give you the
clue you need to solve the problem.