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1. |
A boat while dowenstream in a reiver converd a distance of 50 miles at an average speed of 60 miles per hour. While returning , because of the water resistance , it took 1 hour 15 minutes to cover the same distance What was the average speed during the whole journey? |
A. | 40 mph |
B. | 48 mph |
C. | 50 mph |
D. | 55 mph |
Answer» C. 50 mph | |