## Average Related Problems

*(Quantitative Reasoning)*

The average of given set of numbers can be expressed as:

A = | Sum of the quantities of same kind |

Number of quantities of the same kind. |

*Important Points:*

*① Sum of Quantities = Number of quantities × Average*

② Average is also called the Arithmetic Mean.

③ If all the given quantities have the same value, then the vaue itself is the average.

④ If each of the given quantities is increased/decreases by a constant N, then their average is also increased/decreased by N.

⑤ If each of the given quantities is multiplied by a constant N, then their average is also multiplied by N.

*Solved Problems*:

**Q1: Fnd the average of first five even numbers.**

Answer: A = (2 + 4 + 6 + 8 + 10)/5 = 30/5 =

**6**