In the kitchen of a busy restaurant, it takes M minutes to wash P pots. At this rate, how many hours does it take to wash 15P pots? Choose one:
A) 4/M B) 4M C) 900M D) M/900 E) M/4
The time it takes to wash 15P pots is 15M minutes which is 15M / 60 = M/4 hours.   The answer is M/4.
<result>E</result>
In the kitchen of a busy restaurant, it takes M minutes to wash P pots. At this rate, how many hours does it take to wash 15P pots?