Basic Math Examples

an arithmetic progression consists of $27$ terms. the middle term is $75$ find the sum of all terms.

Step 1

The mean of a set of numbers is the sum divided by the number of terms.

$\frac{27 + 75}{2}$

Step 2

Add $27$ and $75$ .

$\frac{102}{2}$

Step 3

Divide $102$ by $2$ .

$51$