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The sum of the ages of 4 children born at the intervals of 2 years is 36. What is the age ofthe eldest child?

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55 cents Nalmeswyn
Answer:

age = x

then x+2x +4x +6x = 39

13x= 36

x= 36/13 = 3

1st child = x =3

2nd child = x×2 =6 year

3rd child = x×4 = 12 years

4th child =x×6 =18

proof = sum of age = 3+6+12+18 = 39

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