It takes Brad 2 hours to mow his lawn. It takes Kris 3 hours to mow the same lawn. At the same pace, how long would it take them to mow the lawn if they do the job together?
1 Answer
Dec 15, 2016
It would take them
Explanation:
For problems like these, we consider what fraction of the work can be done in one hour.
Call the time it takes them to mow the lawn together
#1/2 + 1/3 = 1/x#
#3/6 + 2/6= 1/x#
#5x = 6#
#x = 6/5 -> 1.2" hours"#
Hopefully this helps!
