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Question

Rekha takes 20 minutes to cover a distance of 3.2 kilometres on a bicycle. Calculate her speed in km/h.


A

9.6 km/h

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B

2.67 km/h

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C

0.16 km/h

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D

200 km/h

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Solution

The correct option is A

9.6 km/h


Given:
Distance, d=3.2 km
Time taken:
t=20 min
t=20×160 h=13 h

Speed is given as the ratio of distance travelled to time taken.
v=dt
v=3.2 km13h=9.6km/h

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