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1. |
In a stream running a 2 mph , a motorboat goes 6 km upstream and back again to he starting point in 33 minutes . Find the speed of the motorboat in still water . |
A. | 22 kmph |
B. | 23 kmph |
C. | 24 kmph |
D. | 25 kmph |
Answer» B. 23 kmph | |