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A car completed a journey of 5000 km. Fi...

A car completed a journey of 5000 km. First 2000 km at 40 km/hr then next 1500 km at 60 km/hr and rest at 30 km/hr. Calculate the average speed of the journey?

A

35 km/hr

B

40 km/hr

C

50 km/hr

D

45 km/hr

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