Aptitude - Speed and Distance


Speed = DistanceTime
Time = DistanceSpeed
P km/hr = (P x 518)m/sec
P m/sec = (P x 185)km/hr

If the ratio of the speeds of P and Q is p:q, then the ratio of the times taken by them to cover the same distance is

1p:1q or q : p

The average speed of the journey is


if a man covers a certain distance at p km/hr and an equal distance at q km/hr

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