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One grand father has 3 grand children two of the age
difference is 3.Eldest child age is 3 times the youngest
childs age and the eldest child age is two year more than
the sum of other two children. Find what is the age of the
elders child?
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Answer / shin
Assume x is the age of the youngest, 3x is the age of elder, y is the age of the 2nd kid.
Given 3x = 2 + x + y.
Given two of the age difference is 3.
If y = x + 3, then 3x = 2 + x + (x + 3), x = 5.
If y = 3x - 3, then 3x = 2 + x + (3x - 3), x = 1.
If x = 5, y = 8, elder = 15 age.
If x = 1, y = 0, elder = 5 age. (which is wrong).
Hence, the age of the elder is 15.
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