Courses

# Important Formulae: Speed, Time & Distance CAT Notes | EduRev

## Quant : Important Formulae: Speed, Time & Distance CAT Notes | EduRev

The document Important Formulae: Speed, Time & Distance CAT Notes | EduRev is a part of the Quant Course Quantitative Aptitude (Quant).
All you need of Quant at this link: Quant

Time Speed and Distance

Speed = Distance / Time
1 kmph = 5/18 m/sec; 1 m/sec = 18/5 kmph If the distance covered is constant then the average speed is Harmonic Mean of the values (s1, s2, s3….sn) If the time taken is constant then the average speed is Arithmetic Mean of the values (s1, s2, s3….sn) EduRev's Tip: Given that the distance between two points is constant, then
⇒ If the speeds are in Arithmetic Progression, then the times taken are in Harmonic Progression
⇒ If the speeds are in Harmonic Progression, then the times taken are in Arithmetic Progression
For Trains, time taken = For Boats,
SpeedUpstream = SpeedBoat – SpeedRiver
SpeedDownstream = SpeedBoat + SpeedRiver
SpeedBoat = (SpeedDownstream + SpeedUpstream) / 2
SpeedRiver = (SpeedDownstream – SpeedUpstream) / 2
For Escalators, The difference between escalator problems and boat problems is that escalator can go either up or down.

Offer running on EduRev: Apply code STAYHOME200 to get INR 200 off on our premium plan EduRev Infinity!

## Quantitative Aptitude (Quant)

116 videos|131 docs|131 tests

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

;