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One grandfather has three grandchildren, two of their age difference is 3, eldest child age is 3 times youngest child's age and eldest child's age is two times of sum of other two children. what is the age of eldest child?

Read Solution (Total 2)

let us take a b c are the ages of eldest,middle,youngest respectively
a-b=3
b-c=3
c-a=3

here a=3c
a=2(b+c)

from first 3 eqs c=3/2,b=9/2
put those values in a=2(b+c)

we get
a=12...this is required age
13 years agoHelpfull: Yes(5) No(22)

it is not 3 times
it is 3 more then
13 years agoHelpfull: Yes(4) No(13)

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