A man covers half of his journey at 6km/hr and the remaining half at 3 km/hr. His average speed is - Study24x7
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A man covers half of his journey at 6km/hr and the remaining half at 3 km/hr. His average speed is

A

9 km/hr

B

4.5 mm/hr

C

4 km/hr

D

3 km/hr

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