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:	Choose the correct choice
A) 1.2 km
B) 2.4 km
C) 3.2 km
D) 3.6 km
E) 4.6 km
Speed downstream = (15 + 3)= 
<gadget id="calculator">(15 + 3)</gadget>
<output>18</output>
18 kmph.   Distance travelled= 18 x 12/60	km = 3.6 km.   ANSWER:3.6 km
<result>D</result>
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: