1 . A train went 300 miles from city X to city Y at an average speed of 80 mph. At what speed did it travel on the way back if its average speed for the whole trip was 100 mph?
- A. 120 mph
- B. 125 mph
- C. 133.33 mph
- D. 137.5 mph
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Bangladesh Bank - Assistant Director - 2006
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