1.

A boat while dowenstream in a reiver converda 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. 0 mph
B. 8 mph
C. 0 mph
D. 5 mph
Answer» C. 0 mph


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