A boat can travel with a speed of 24 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 140 km downstream Choose the correct choice from the following options:
A) 3 hours
B) 4 hours
C) 5 hours
D) 6 hours
E) 7 hours
Explanation:   Speed of the boat in still water = 24 km/hr   speed of the stream = 4 km/hr   Speed downstream = (22+5) = 28 km/hr   Distance travelled downstream = 140 km   Time taken = distance/speed = 140/28= 
<gadget id="calculator">140/28</gadget>
<output>5</output>
5 hours   Answer: Option 5 hours
<result>C</result>
A boat can travel with a speed of 24 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 140 km downstream