Question

For the return trip, Moses suggests taking a shortcut that will save 4 miles from the total 40-mile hiking distance. He calculates that they will need to average 6 miles per day over the 4 days coming back, because 4 - 4 - 6. Is Moses correct?​

Answer 1

Moses is incorrect.
40miles - 4 miles = 36 miles
36 miles/4 days = 9 miles/day