To get from her home to a friend's house, Georgia must go past a school, then a post office:
Signs tell Georgia that the distance she walks from home to the school is 7/8 mile, and the distance from the school to the post office is 5/6 mile.
The whole trip takes Georgia 42 minutes. If Georgia can walk a mile in 18 minutes, then how many miles is the distance from the post office to her friend's house?
From Home to the post office = 7/8 + 5/6 mile = 41/24 mile
(41/ 24 + x ) mile * 18 min/mile = 42 minutes x = distance from PO to Freind's crib
x = 42 /18 - 41/24 = .625 miles ( 5/8 mile)