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 4P pots?  Choose the correct option:
A) M/15
B) 15M
C) 15/M
D) 4M/15
E) 15/4M
The time it takes to wash 4P pots is 4M minutes which is 4M / 60 = M/15 hours.   The answer is M/15.
<result>A</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 4P pots?