Question

John score on his last five quizzes are as follow : 24,27,22,30,18 . His average score will be?

Answer 1

To find the average for a set of numbers we use the following formula:

$\text{Average}=\frac{\text{SUM}}{AMOUNT\text{ OF NUMBERS}}$

That means the average will be the result of the division between the sum of the scores by the amount of scores we have.

The sum of the scores is:

$24+27+22+30+18=121$

Sum: 121

And the amount of numbers is the number of scores we have, in this case, we have 5 scores.

Amount of numbers: 5

So the average will be:

$\text{Average}=\frac{121}{5}$

which is equal to:

$\text{Average=24.2}$

Answer: 24.2