Performance Boat Shop

A boats maximum speed in still water is 20km/hr. When travelling on a?

river from A to B it normally takes two hours. When the flood gates on the river are opened, the river flow at 5km/hr in the direction from A to B. How long will it take to travel from A to B now?

Public Comments

1. 20 km/hr = 40 km/2hrs 40 km at 25 km/hr = 8/5 hr or 1 hour and 36 minutes.