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1. |
If a boat is rowed downstream for 50 km in 5 hours and upstream for 24 km in 6 hours, what is the speed of the boat and the river? |
A. | (7 , 3) km/hr |
B. | (6 , 4) km/hr |
C. | (10 , 4) km/hr |
D. | None of these |
Answer» B. (6 , 4) km/hr | |