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Question

What is the square of 55?
  1. 2025
  2. 3035
  3. 3025
  4. 1025


Solution

The correct option is C 3025
Last digit is 5. So the last two digits of the square will be 25.
Preceding digits is the product of 5 and (5+1) i.e. 30.
So the square of 55 is 3025.

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