GRE Problem Solving Question 483
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Source: Magoosh
Machine A can make 350 widgets in 1 hour, and machine B can make 250 widgets in 1 hour. If both machines work together, how much time will it take them to make a total of 1000 widgets?
- A 1 hour and 20 minutes
- B 1 hour and 24
- C 1 hour and 30 minutes
- D 1 hour and 30 minutes
- E 1 hour and 40 minutes