Jimmy and his family are on their way to visit some family friends who live 780 miles away from them based on the route they chose, they expect to complete their trip in 3 daysfirst day :4 hours at an average speed of 60 miles per hoursecond day: 6 hours at an average speed of 65 miles per hour. IF THE AVERAGE SPEED ON THE THIRD DAY IS 60 MILES PER HOUR,HOW MANY MORE HOURS WILL IT TAKE FOR THEM TO REACH THEIR FAMILY FRIENDS HOME?
Accepted Solution
A:
It would take them another 2.5 hours. To solve this you first need to multiply 60 by 4 to get 240. Subtract 240 from 780 to get 540. Then, Multiply 65 by 6 to get 390. Subtract 390 from the remaining 540 to get 150. Divide the final 150 by 60 to get 2.5. this is the remaining time they have to go before they reach their family and friends.