A train travelled distances of 10 km, 20 km and 30 km at speeds of 50 – McqOptions

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1.	A train travelled distances of 10 km, 20 km and 30 km at speeds of 50 km/hr, 60 km/hr and 90 km/hr respectively. The average speed of the train was
A.	67.25 km/hr
B.	69.23 km/hr
C.	70.12 km/hr
D.	72.45 km/hr
Answer» C. 70.12 km/hr

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