Speed Time and Distance Methods

Speed Time and Distance
This type of problem are given in Quantitative Aptitude which is a very essential paper in banking exam.Under below  given some formula and more example for your better practice.

 Formula:
Distance = Speed x Time
Generally use this formula we can find the distance of any running train, car etc. This expressions basically used in relational algebra. If Speed of train or car is given with time and using this multiplying this two we can find the distance covered by train. The unit of distance is kilometers, meters, miles, etc.


Speed = Distance / Time
To find the speed we can divide Distances by Time.
The unit of Speed is given in fraction that is Km/hr (Distance unit in numerator and Time units in the denominator Suppose, 35 Km/hr.


Time = Distance / Speed
To find the Time we can divide distance by speed.
If in the question is Time unit given in minute then convert it into hours divide 60 before you use the equation to find the distance in miles.
and if say to find in minutes take to cover distance in meter and speed in Km / hr then Km / hr convert into m / sec, multiplied by 5 / 18.


Formula:
  • B km / hr convert to m / sec = ( B x 5 / 18) m / sec.
  • B m / sec convert to km / sec =(B x 18 / 5 ) km / sec.


If the ratio of the speeds of A and B is a : b, then the ratio of the times taken by them to cover the same distance is 1 / a : 1 / b or b : a .

Suppose a man covers a certain distance at x km / hr and an equal distance at y km / hr. Then, avaerage
speed during the whole journey is ( 2 xy / x + y ) km / hr.



Here is some sub link of Examples about this topic which help you better understanding.




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