It takes Jim three hours to wash the gym and it takes Julia two hours to wash the gym. Working together, how many minutes will it take them to wash the gym?	Select the correct option
A) 70 B) 72 C) 74 D) 76 E) 78
Jim can wash (1/3) of the gym per hour.   Julia can wash (1/2) gym per hour.   Together they can wash 1/3+1/2=5/6 of the gym per hour.   1 gym / (5/6) of the gym per hour = 6/5 hours = 72 minutes.   The answer is 72.
<result>B</result>
It takes Jim three hours to wash the gym and it takes Julia two hours to wash the gym. Working together, how many minutes will it take them to wash the gym?