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Arithmetic Aptitude :: Average

Average - Important Formulas

Average - General Questions
Average - Averages
Average - Data Sufficiency 1
Average - Data Sufficiency 2
Average - Data Sufficiency 3
Average - Data Sufficiency 4
Average - data sufficiency 5
Average - data sufficiency 6
Average - [data sufficiency 1]
Average - Average Aptitude Test Paper 1
Average - Average Aptitude Test Paper 2
Average - Average Aptitude Test Paper 3
Average - Average Aptitude Test Paper 4

  1. Average

              Average =  \(\frac { sum of observations } { Number of observations} \)   
     

  2. Average Speed:

    Suppose a man covers a certain distance at x kmph and an equal distance at y kmph.

    Then, the average speed druing the whole journey is \(\frac { 2xy } { X +Y }\) kmph         
     
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