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  9. Q396

RRB Group D (Level-1 posts) 2022 · Question 396 of 598

The smallest natural number that must be added to 1212 to make it a perfect square is:

  1. A18
  2. B27
  3. C13Correct
  4. D24

Answer: C. 13

Explanation

The nearest perfect square greater than 1212 is 1225 (which is 35²). Therefore, 1225 - 1212 = 13.

Source: RRB Group D 2022 Prev. Yr. Paper (18 Aug 2022) (Shift 2) - Prepp · reliable-secondary

← Q395View full paper (598 questions)Q397 →

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