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