Question

The average age of a family of 5 members at the time of the birth of the youngest member was 25 years if now the average age of the family is 28 years, then what is the present age of the youngest member of the family?

Answer 1

Step-by-step explanation:

the average age of a family= 5 member

so let's take x because we don't present age

=28 5

x. 25

=28*25=700

5*x=700÷5

=140

so the present age of the youngest of family

=140 years

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