Quantitative Aptitude Important Formulas Logical ReasoningGeneral Knowledge of MPGeneral Knowledge of India |
Average - Important Formulas,Tricks and Examples |
Average The average of first n natural numbers is =>[n(n+1)/2] /n => (n +1)/2 Suppose a man covers a certain distance at x kmph and an equal distance at y kmph. Then, the average speed during the whole journey is = 2xy/(x + y) kmph. Mean, Median, Mode, and Range Example: Data Set = 2, 5, 9, 7, 5, 4, 3 Median :To find the median, order the numbers and see which one is in the middle of the list. Example: Odd Number of Elements Data Set = 2, 5, 9, 3, 5, 4 Mode :To find the mode, order the numbers lowest to highest and see which number appears the most often. Example: One Mode Range :To find the range, subtract the lowest number from the biggest number. |