A person covered 9 km at 3 km/h, 25 km at 5 km/h and 30 km at 10 km/h. Then find the average speed in covering the who

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Q 2413501449.     A person covered 9 km at 3 km/h, 25 km at 5 km/h and 30 km at 10 km/h. Then find the average speed in covering the
whole distance.
RRB-CLERK 2016 Mains 2001
A

5 2/11 km/h

B

5 5/11 km/h

C

5 7/11 km/h

D

6 km/h

E

None of these

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