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Question

If a number of n-digits is perfect square and n is an odd number, then which of the following is the number of digits of its square root?
  1. n2
  2. n+12
  3. n12
  4. 2n

A
n2
B
n+12
C
2n
D
n12
Solution
Verified by Toppr

no of digits in a perfect square is n
If n is odd then no of digits in its square roots is n+12

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