## Alia is 9 years old than her twin brothers. If they are x years old, find the mean age of the three children in simplest terms

Question

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## Answers ( )

❄ Given ❄Alia is

9 years olderthan her twin brothers.❄ To Find❄The

mean ageof thethree childrenin simplest terms ifthey are x years old.## ❄

Solution❄According to the question,

► Age of Alia’s twin brothers =

x years► Alia’s age =

(9 + x) yearsWe know,

Substituting values :-

Mean age = (9 + x + x + x) / 3

Mean age = (9 + 3x) / 3

Mean age = 3(3 + x) / 3

## Mean age = (3 + x) years

✨

Therefore, the mean age of the three children in simplest terms is 3 + x years.Given:To find:solution:…..(formula)Mean = sum of observation/Number of observation=> (9 + x + x + x)/ 3

=> (9 + 3x)/3

=> 3(3 + x)/3

=> 3 + x

=>

Answer is 3 + x years