SOLUTION: A family drives 123 miles in 2 hours, then goes another 4 miles in 15 minutes, then travels another 191 miles in 3 3/4 hours. What was their average speed to the nearest tenth of a

Question 1147914: A family drives 123 miles in 2 hours, then goes another 4 miles in 15 minutes, then travels another 191 miles in 3 3/4 hours. What was their average speed to the nearest tenth of a mile per hour?
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39620)   (Show Source): You can put this solution on YOUR website!
Total Miles of Distance

Total Hours of Time

Average speed is total miles divided by total time.
Answer by ikleyn(52813)   (Show Source): You can put this solution on YOUR website!
.

            The solution by @josgarithmetic is WRONG,

            so I came to bring the correct solution.

Total Miles of Distance 123 + 4 + 191 = 318 Total Hours of Time 2 + + = 6 hours. Average speed is total miles divided by total time = 53 miles per hour. ANSWER

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