Average

Aptitude Average Study Materials PDF

  • Average refers to the sum of numbers divided by n. Also called the mean average.
  • Sums of data divided by the number of items in the data will give the mean average. The mean average is used quite regularly to determine final math marks over a term or semester. Averages are often used in sports: batting averages which means number of hits to number of times at bat. Gas mileage is determined by using averages.

For Example: To find the average of 3, 5 and 7.

Solution

Step 1: Find the sum of the numbers.

3 + 5 + 7 = 15

Step 2: Calculate the total number.

There are 3 numbers.

Step 3: Finding average 15/3 = 5

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