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Raju has to cover a distance of 240 km i...

Raju has to cover a distance of 240 km in 4 hours. If he covers one-third of the journey in `2/7`th time, what is his speed at the beginning of the journey?

A

70 km/hr

B

75 km/hr

C

60 km/hr

D

65 km/hr

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