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devendra dodwadiya

· started a discussion

· 1 Months ago

wrong (Question: 394556.0 )

age of twin will be 12*2=24
so avg =24+9+3/4=9

Question:

At the time of marriage, the average age of a couple was 18 years. After their 1st and 2nd children (twins) were born, the average  age of the family become 10.5 years. The average age of family just after 3rd child born was 10.8 years. The average age of the family after 4th child born was 14 years. The present age of the family is 17 years. The present  average age of 4 children is –

Options:
A)

9 years

B)

6 years

C)

12 years

D)

10 years

Solution:

Ans: (b)


SHWETA

· commented

· 1 Months ago

9 is the right answer
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