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:

A 1.2 km

B 1.8 km

C 2.4 km

D 3.6 km

Solution

Correct Answer: Option D

Speed downstream
= (15 + 3) kmph
= 18 kmph
Distance travelled
= (18×12/60) km
= 3.6 km

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