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1. |
Rajesh rows in still water with a speed of 4.5 kmph to go to a certain place and comes back. Find his average speed for the whole journey, if the river is flowing with a speed of 1.5 kmph? |
A. | 2 kmph |
B. | 4 kmph |
C. | 6 kmph |
D. | 8 kmph |
Answer» C. 6 kmph | |