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A car moves at 40 km/h for half the time and 60 km/h for the other half. Average speed is
A100 km/h
B52 km/h
C50 km/h
D48 km/h
Answer & Solution
Correct answer: C. 50 km/h
With equal times the average speed is the simple mean, (40 + 60)/2 = 50 km/h.
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