A boat travels at 60 km/h in still water, and the current flows at 20 km/h. What are the boat's speeds when moving downstream and upstream?

Show Answers

35 km/h downstream, 25 km/h upstream80 km/h downstream, 40 km/h upstream40 km/h downstream, 60 km/h upstream50 km/h downstream, 55 km/h upstream

Explanation

The downstream speed is calculated by adding the boat's speed in still water and the current speed: 60 + 20 = 80 km/h. The upstream speed is found by subtracting the current speed from the boat's speed: 60 - 20 = 40 km/h.