If n^{2} = 12345678987654321, what is n?

  • Option 1)

    12344321

  • Option 2)

    1235789

  • Option 3)

    111111111

  • Option 4)

    1235789

  • Option 5)

    11111111

Answers (1)

            If n^{2} = 12345678987654321

Acc.\: To \: rule \: 11^{2}=121

(111)^{2}=12321

Hence\: n=111111111

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