A boat can travel with a speed of 12 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.	Options: A) 4.25 hr B) 5.25 hr C) 8.25 hr D) 2.25 hr E) 2.50 hr
speed of boat in still water = 12 km/hr   speed of the stream = 4 km/hr   Speed downstream = (12+4)= 
<gadget id="calculator">(12+4)</gadget>
<output>16</output>
16 km/hr   Time taken to travel 68 km downstream= 68⁄16 = 17⁄4 = 4.25 hours   4.25 hrnswer is 4.25 hr
<result>A</result>
A boat can travel with a speed of 12 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.