Molly drove 50 miles to her grandmother house the trip took her 2 hours what was her average speed in miles per hour

Well if it was in 2 hours we can start by dividing both numbers by two because we want to find the average PER mile so

50/2 = 25

2/2 = 1

(we are just simplifying)

so if it took her 1 hour to drive 25 miles

her average speed would be 25 milers per hour

or 25miles/hour