Question

A kayaker travels X miles per hour down stream for three hours. On the for our return trip, the kayak or travels 1 mph slower. How far did the kayak or travel in total?

Answer 1

3x is the miles from downstream
4 (x - 1) is the return trip

Solution:
3x = 4 (x - 1)
3x =4x - 4
-x = -4
x = 4

The outward journey 3x = 12 miles
Return journey is same length
Therefore the distance travel is 24 miles