Father and Grandfather Age Puzzle


A boy asks his father, ” what is the age of grand father?”.

Father repliedHe is x years old in x^2 years“,
and also said, “we are talking about 20th century“.

What is the year of birth of grandfather?

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    Answer- 1892


    It is 20th century,
    and he will be x years old in x^2 year.

    square(43) = 1849
    square(44) = 1936 (20th Century)
    square(45) =  2025

    It means, in 44^44 = 1936 GRANDFATHER is of 44years old
    Year of birth of grandfather = 1936-44= 1892

    Detective Expert Answered on 3rd September 2015.
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