Kramer can pack X boxes of cigarettes per minute. If there are Y boxes of cigarettes in one case, how many cases can Kramer pack in 4 hours?	Choose the correct choice from the following choices.
A) 240X/Y.
B) 120X/Y.
C) 60Y/X.
D) 120Y/X.
E) (X + Y)/60.
Kramer can pack X boxes per min.   Therefore in 4 hrs(240mins)he can pack 240X boxes.   If there are Y boxes in one case then then the total number of cases packed by Krame (240X/Y.NSWER 240X/Y.)
<result>A</result>
Kramer can pack X boxes of cigarettes per minute. If there are Y boxes of cigarettes in one case, how many cases can Kramer pack in 4 hours?