The speed of a boat in still water in 42 km/hr and the rate of current is 4 km/hr. The distance travelled downstream in 44 minutes is:  Choices
A) 86.6 km
B) 46.6 km
C) 33.7 km
D) 35.6 km
E) 26.6 km
Speed downstream = (42 + 4)= 
<gadget id="calculator">(42 + 4)</gadget>
<output>46</output>
46 kmph   Time= 44 minutes =44/60 hour = 11/15 hour   Distance travelled = Time × speed =11/15×46 = 33.7 km   ANSWER:33.7 km
<result>C</result>
The speed of a boat in still water in 42 km/hr and the rate of current is 4 km/hr. The distance travelled downstream in 44 minutes is: