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    • Question

      If q = 105, then what is the value of

      src="https://static.ixambee.com/public/images/quesimg/RRB Group D/Quantitative Aptitude/Algebra/80103_7906577.gif" alt="" /> is
      A 105 Correct Answer Incorrect Answer
      B 104 Correct Answer Incorrect Answer
      C 106 Correct Answer Incorrect Answer
      D 107 Correct Answer Incorrect Answer

      Solution

      Given,    =   [Using formula: (a-b)3 = a3 - b3 - 3ab(a-b)] =    = q-1 = 105 - 1 = 104

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