A boat can travel with aspeed of 20km/hr in still water. If the speed of the stream is 5km/hr, find the time taken by the boat to go 125km downstream.
Select
A) 1 hr
B) 2 hrs
C) 3 hrs
D) 4 hrs
E) 5 hrs

Rationale: speed downstream = ( 20 + 5 ) km / hr = 25 km / hr . time taken to travel 125 km downstream = 125 / 25 hrs = 5 hrs . answer : e
Answer: E