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Average of a couple 10 years ago was 25. The average
remains same after having a child and twins after 3 years.
What is the present age of the first child
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Answer Posted / kirti
Ans=21
Explanation:
10 years ago the average of couple was 25 and their current
ave is also 25.
Total number of People=5
25*5=125
so the current total of their ages=125
and current total age of couple=25*2+10*2=70
125-70=55
So the current total of the ages of 3 children=55
age of the twins=17 each and present age of the first child=21.
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