How long will it take to paint the wall if you and your brother work together?

Question

You and your younger brother have volunteered to paint a wall of the community center as part of a community service project. You could paint the wall by yourself in 3 hours. Your brother (who has less experience painting) could paint the wall by himself in 6 hours.

Answer 1

rate1=1/3

rate2=1/6

kombined rate=(1/3)+ (1/6)=1/2

both werk tugether need 2 ours tu paent it