A boatman rows 96 km downstream in 8 hours with a stream speed of 4kmph. How much time will he take to cover 8km upstream?	Choose one:
A) 2 hours	B) 8 hours	C) 6 hours	D) 7 hours	E) 9 hours
Explanation:   Speed = distance/time   Speed downstream: 96 / 8 km/hr = 12kmph   Speed of stream = 4kmph   Effective speed of boat = (12-4)= 
<gadget id="calculator">(12-4)</gadget>
<output>8</output>
8kmph   Distance to be travelled upstream= 8 km   Speed upstream = boat speed-current speed   = 8-4= 
<gadget id="calculator">8-4</gadget>
<output>4</output>
4 kmph   Time taken= distance/speed = 8/ 4= 
<gadget id="calculator">8/ 4</gadget>
<output>2</output>
2 hours   2 hoursNSWER:2 hours   Thus it will take 2 hours to go upstream.
<result>A</result>
A boatman rows 96 km downstream in 8 hours with a stream speed of 4kmph. How much time will he take to cover 8km upstream?