The age of $5$ boys are $12. 8, 9, 11$ and $10$ years. Calculate the average age?

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Solution

$\frac{12.8 + 9 + 11 + 10}{4}$

$= \frac{42.8}{4}$

$= 10.7 y e a r s$

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The age of 5 boys are 12.8,9,11 and 10 years. Calculate the average age?

12.8+9+11+104=42.84=10.7years

The age of $5$ boys are $12. 8, 9, 11$ and $10$ years. Calculate the average age?

$\frac{12.8 + 9 + 11 + 10}{4}$

$= \frac{42.8}{4}$

$= 10.7 y e a r s$