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The speed of a boat in still water in 15 km/hr and the speed of stream is 5 km/hr. The distance travelled downstream in 12 minutes is? |
8 km 5 km 4.8 km 4 km |
4 km |
ATQ, Downstream speed = 15 + 5 = 20 km/hr. Distance = speed x time = 20 x \(\frac{12}{60}\) = 4 km. |
