Home » GMAT » How many cases can Kramer pack in 2 hours?
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 2 hours?
A. 60X/Y.
B. 120X/Y.
C. 60Y/X.
D. 120Y/X.
E. (X + Y)/60.
Correct Answer: B
Explanation/Reference:
Explanation:
Y/X is the time it takes Kramer to fill a case with boxes (in minutes). In two hours there are 120 minutes, so 120/(Y/X) is 120X/Y, and that is the number of cases that Kramer can fill in two hours.
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