Question

The average age of a family consist father,mother and a child is 20.If after seven years the age of child will be 11.What was tje average age when ome day before the child is born

Answer 1

First an equation in these questions with whatever is given, you will definitely get an idea for what to do next

Answer 2

The required average is 26 years.

Step-by-step explanation:

Since we have given that

Average of father, mother, child = 20 years

So, sum of their ages would be

$20\times 3=60\ yrs$

If after 7 years, the child will be 11 years,

So, age of child at present becomes $11-7=4\ yrs$

Average of father and mother would be

$60-4-4=52\\\\So,\ average=\dfrac{52}{2}=26$

Hence, the required average is 26 years.

# learn more:

The average age of a couple was 24 years. After their 1st and 2nd children (twins) were born, the average age of the family became 13.5 years. The average age of the family just after 3rd child was born was 13.2 years. The average age of the family after 4th child was born was 16 years. The current average age of the family is 19 years. What is the current age of the twin children?

14 years

15 years

11 years

12 years

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