A train went 300 miles from X to Y at an average speed of 80 mph. At what speed did it travel on the way back it its average speed for the whole trip was 100 mph?
Created: 6 years ago |
Updated: 2 years ago
best des
Total time spent = (300 + 300) / 100 = 6 hours
Time spent on departure trip = 300 / 80 = 3.75 hours
Time spent on return trip = 6 - 3.75 = 2.25 hours
Average speed on return trip = 300 / 2.25 = 133.33 miles per hour.
Md Azizur Rahman
Founder of Satt
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