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While working alone at their constant rates computer X can process 240 files in 4 hours, and computer Y can process 240 files in 8 hours. If all files processed by these computers are the same size how long would it take the two computers working at the same time at their respective constant rates, to process a total of 240 files?
A. 2 hours
B. 2 hours 20 minutes
C. 2 hours 40 minutes
D. 6 hours
E. 6 hours 20 minutes
OA C
While working alone at their constant rates computer X can process 240 files in 4 hours, and computer Y can process 240 files in 8 hours. If all files processed by these computers are the same size how long would it take the two computers working at the same time at their respective constant rates, to process a total of 240 files?
A. 2 hours
B. 2 hours 20 minutes
C. 2 hours 40 minutes
D. 6 hours
E. 6 hours 20 minutes
OA C
