Afire fighter has to get to a burning building as quickly as he can. there are three paths that he can take. he can take his fire engine over a large hill (5 miles) at 10 miles per hour. he can take his fire engine through a windy road (7 miles) at 9 miles per hour. or he can drive his fire engine along a dirt road which is 8 miles at 12 miles per hour.

The fastest route is to go along the dirt road (8 miles) at 12 miles per hour because the large hill (5 miles) at 10 miles an hour would take him 30 minutes, the windy road (7 miles) at 9 miles per hour would take 45 minutes and the dirt road (8 miles ) at 12 miles per hour would take 20 minutes therefore if he needed to get  to the house as fast as he could he would take the dirt road.