A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr. find the time taken by the boat to go 68 km downstream?
Choose the correct answer
A) 2 hours B) 3 hours C) 4 hours D) 5 hours E) None
Solution   Speed Downstream	= (13 + 4) km/hr   = 17 km/hr.   Time taken to travel 68 km downstream	=(68 / 17)= 
<gadget id="calculator">(68 / 17)</gadget>
<output>4</output>
4 hrs.   Answer 4 hours
<result>C</result>
A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr. find the time taken by the boat to go 68 km downstream?