Question

The speed of the boat going with a current is 20 mph. When the boat goes against the current, the speed is 16 mph. Find the speed of the boat in still water and the speed of the current.

Answer 1

boat = 18

current = 2

Explanation:

Let the speed of the current = y

Let the speed of the boat = x

x + y = 20

x - y = 16 Add

2x = 36 Divide by 2

x = 18

The speed of the boat = 18

x + y = 20

18 + y = 20 Subtract 18

y = 20 - 18

y = 2