A person travels from P to Q a speed of 40 km/hr and returns by increa – InterviewSolution

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1.

A person travels from P to Q a speed of 40 km/hr and returns by increasing his speed by 50%. What is his average speed for both the trips?

Answer»

48 km/hr

SPEED on return trip = 150% of 40 = 60 km/hr.

Average speed = (2 * 40 * 60)/(40 + 60) = 48 km/hr.

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