A boat can travel with a speed of 15 km/hr in still water.
A boat can travel with a speed of 15 km/hr in still water. If the speed of the stream is 6 km/hr, find the time taken by the boat to go 86 km downstream.
Answer/Solution
4.1 hr
Steps/Work
speed of boat in still water = 15 km/hr
speed of the stream = 6 km/hr
Speed downstream = (15+6) = 21 km/hr
Time taken to travel 86 km downstream = 86â„16 = 17â„4 = 4.1 hours
Answer is A
speed of the stream = 6 km/hr
Speed downstream = (15+6) = 21 km/hr
Time taken to travel 86 km downstream = 86â„16 = 17â„4 = 4.1 hours
Answer is A