A car has to travel a total distance of 300 km. The car covers the first half of the distance at a speed of 70 Km/hr and the remaining distance at a speed of 80 km/hr. What is the average speed of the entire journey?

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KPTCL Assistant Exam (Mescom) SLOT-1 7-MAY­-2017 click here to view all questions

A car has to travel a total distance of 300 km. The car covers the first half of the distance at a speed of 70 Km/hr and the remaining distance at a speed of 80 km/hr. What is the average speed of the entire journey?

A74.72 km/hr

B75.72 km/hr

C74.25 km/hr

D73.72 km/hr

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