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1. |
To swim upstream English Channel, a swimmer takes twice the time he takes to swim downstream. His speed in still water is 12km/hr. Find the speed of the English Channel |
A. | 3 km/hr |
B. | 4 km/hr |
C. | 6 km/hr |
D. | 8 km/hr |
Answer» C. 6 km/hr | |