Mathematics
NULL
Medium
Question
A person goes from X to Y at 40 km/h and returns 50% faster. What is the average speed for the round trip?
A
36 km/h
B
45 km/h
C
48 km/h
✓ Official correct answer
D
50 km/h
Community credibility
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A
36 km/h
No member explanations yet for this option.
B
45 km/h
No member explanations yet for this option.
C
48 km/h
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D
50 km/h
No member explanations yet for this option.
Explanation
Return speed = 60 km/h. Average = 2×40×60/(100) = 48 km/h.