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  9. Q15

SSC GD Constable 2011 · Question 15 of 97

75×75−26×26 101 =?

  1. A59
  2. B39
  3. C29
  4. D49Correct

Answer: D. 49

Explanation

75×75−26×26 75 2 −26 2 101 = 101 (75+26)(75−26) ==> 101 ( ∵ a 2 − b2 = (a + b)(a − b)) 101×49 = 101 = 49

Source: Solved SSC GD 2011 Paper with Solutions — Testbook · reliable-secondary

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