A train travels 240 miles in 4 hours, then 180 miles in 3 hours. What was the average speed for the whole trip?
Answer
60 mph
How to solve it
1
Total distance: 240 + 180 = 420 miles
2
Total time: 4 + 3 = 7 hours
3
Average: 420 ÷ 7 = 60 mph
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