Question

A car completed a journey of 8500 km. First 4000 km at

80 km/hr then next 2500 km at 50 km/hr and rest at 40 km/hr. Calculate the average speed of the journey

A 58.67 km/h

B 55.67 km/hr

C 56.67 km/hr

D 57.67 km/hr

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