A boat can travel with a speed of 25km/hr in still water. If the speed of the stream is 5km/hr, find the time taken by the boat to go 120km downstream.	Answers:
A) 1 hr  B) 2 hrs  C) 3 hrs  D) 4 hrs  E) 5 hrs
Speed downstream = (25 + 5) km/hr = 30 km/hr.   Time taken to travel 120 km downstream = 120/30= 
<gadget id="calculator">120/30</gadget>
<output>4</output>
4 hrs.   Answer : 4 hrs
<result>D</result>
A boat can travel with a speed of 25km/hr in still water. If the speed of the stream is 5km/hr, find the time taken by the boat to go 120km downstream.