Question

Maya ran every day for a week. She ran 3 miles on Sunday and increased her distance 1/2 mile each day. What was the mean distance, in miles, that Maya ran for the week?

Answer 1

day 1: 3 miles
day 2: 3 + 0.5 miles
day 3: 3 + 1 miles
day 4: 3 + 1.5 miles
day 5: 3 + 2 miles
day 6: 3 + 2.5 miles
day 7: 3 + 3 miles

Add them up

Answer 2

then divide by 7 to get the mean