The speed of a boat in still water in 15 km/hr and the rate of current is 3 km/hr. The distance travelled downstream in 12 minutes is:

1.2 km
1.8 km
2.4 km
3.6 km

Correct Answer: 3.6 km

Explanation:

Speed downstream = (15 + 3) kmph = 18 kmph.

Distance travelled =	❨	18 x	12	❩km = 3.6 km.
			60

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