Question

five years ago meanage of a family was 25 years. what is the present mean age of the family?​

Answer 1

five years ago meanage of a family was 25 years. the present age is 30

Answer 2

Answer:

Let the number of family members be

′

x

′

the average age of the family members 5 years ago is 25 years

so the sum of age of all family members 5 years ago =25x

the sum of age of these family members now and after 5 years elapsed =25x (these added 5 years * no of family members) =25x+5x=30x

Sum of ages =30x

no. family members be x

Therefore, current, average age = sum of ages/no. of members =

x

30x

=30

Step-by-step explanation:

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