Question

1. A boat travels 48 km in 8 hours in upstream and in
downstream it travels 36 km in 6 hours. Find the
boat's speed in still water.​

Answer 1

Answer:

Speed upstream = \frac{40}{8} = 5km/hr

Speed downstream = \frac{36}{6} = 6 km/hr

∴ Speed of boat in still water = \frac{1}{2}(5+6) = 5.5 km/hr