Question

Richard drives from his home to work at an average speed of 50 miles per hour . Later he drives from his work to home at a speed of 60 miles per hour. What is his average speed over the two trips

Answer 1

55 miles per hour

Explanation:

average speed= initial speed+final speed/2= 50+60/2=110/2=55miles per hour

Answer 2

You would find the arithmetic mean of this data, which is (50+60)/2. First, add the two values in the parentheses to get 110/2, then divide to get 55 mph.