A person travelled the first half of the distance from her house to her office at 24 km/h, exactly half of the remaining distance at 20 km/h and the rest at 15 km/h, Her average speed (km/h) in entire journey was:

A person travelled the first half of the distance from her house to he

1.	A person travelled the first half of the distance from her house to her office at 24 km/h, exactly half of the remaining distance at 20 km/h and the rest at 15 km/h, Her average speed (km/h) in entire journey was:
A.	20
B.	18\(\frac{1}{3}\)
C.	19\(\frac{2}{3}\)
D.	18
Answer» B. 18\(\frac{1}{3}\)

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A person travelled the first half of the distance from her house to her office at 24 km/h, exactly half of the remaining distance at 20 km/h and the rest at 15 km/h, Her average speed (km/h) in entire journey was:

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