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
Answers
Answered by
93
❄ Given ❄
Alia is 9 years older than her twin brothers.
❄ To Find ❄
The mean age of the three children in simplest terms if they are x years old.
❄ Solution ❄
According to the question,
► Age of Alia's twin brothers = x years
► Alia's age = (9 + x) years
We 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.
Answered by
37
Given :
- Alia is 9 years old than her twin brothers (9 + x)
- If they are x years old ( x )
To find :
- mean age of the three children in simplest terms
solution :
Mean = sum of observation/Number of observation .....(formula)
=> (9 + x + x + x)/ 3
=> (9 + 3x)/3
=> 3(3 + x)/3
=> 3 + x
=> Answer is 3 + x years
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