alleryA tram covers one third of a route at 20 km/h and the remaining two thirds at 40 km/h. Its average speed?
A30 km/h
B35 km/h
C28 km/h
D32 km/h
Answer & Solution
Correct answer: A. 30 km/h
For a 60 km route, 20 km takes 1 h and 40 km takes 1 h, giving 60 / 2 = 30 km/h.
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