The speed of a boat in still water is 24 km/hr and the rate of current is 3 km/hr. The distance travelled downstream in 15 minutes is Select.
A) 1.6 km B) 2 km C) 3.6 km D) 6.75 km E) None of these
Explanation:   Speed downstreams	=(24 + 3)= 
<gadget id="calculator">(24 + 3)</gadget>
<output>27</output>
27 kmph.   6.75 kmistance travelled= (27 x 15/60)km   = 6.75 km   Option 6.75 km
<result>D</result>
The speed of a boat in still water is 24 km/hr and the rate of current is 3 km/hr. The distance travelled downstream in 15 minutes is