A boat can travel with a speed of 40km/hr in still water. If the speed of the stream is 5km/hr, find the time taken by the boat to go 45km downstream.	Select:
A) 1 hr  B) 2 hrs  C) 3 hrs  D) 4 hrs  E) 5 hrs
Speed downstream = (40 + 5) km/hr = 45 km/hr.   Time taken to travel 45 km downstream = 45/45= 
<gadget id="calculator">45/45</gadget>
<output>1</output>
1 hrs.   1 hrnswer : 1 hr
<result>A</result>
A boat can travel with a speed of 40km/hr in still water. If the speed of the stream is 5km/hr, find the time taken by the boat to go 45km downstream.