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Numerical Ability
Averages
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.
Read Solution (Total 6)
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- Its not about the average. initially the average was 25 and after 3 years also the avg is same which means that 10 years ago they were having their first child and gave birth to the twins after 3 years which clearly tells us that the first child was 3 year old initially .
So now the present age of child will be 10+3 =13 years - 9 years agoHelpfull: Yes(8) No(4)
- kindly answer
- 11 years agoHelpfull: Yes(0) No(0)
- anyone
pls answer
- 9 years agoHelpfull: Yes(0) No(0)
- answer plz
- 5 years agoHelpfull: Yes(0) No(0)
- Present age is 13 years
- 5 years agoHelpfull: Yes(0) No(0)
- The present age of the first child is 13 yrs
Explanation:
Here the average of couple is in concern. 10 years ago the
average of couple was 25. And it is said that the average
of couple remains same after having a child and twins after
3 years. Now that means, 10 years ago they were having 3
children with their first child 3 years old and twins with
0 yrs. And hence the present age of the first child is 3+10
which is 13. - 4 years agoHelpfull: Yes(0) No(0)
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