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CAT 1999 — QA Question 15

Number TheoryEasy

If n2 = 12345678987654321, what is n?

Answer & solution

  • A

    12344321

  • B

    1335789

  • 111111111

  • D

    11111111

Solution

The square root is 111111111.

Hence, option (c).

CAT 1999 QA Q15: If n 2 = 12345678987654321, what is n? — Solution | TheCATExam