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      Question

      Average of three consecutive numbers is 91. Find the sum

      of smallest and largest number.
      A 178 Correct Answer Incorrect Answer
      B 180 Correct Answer Incorrect Answer
      C 182 Correct Answer Incorrect Answer
      D 184 Correct Answer Incorrect Answer

      Solution

      Let the numbers be (a - 1), a and (a + 1).
      So, (a - 1 + a + a + 1) ÷ 3 = 91
      Or, (3a/3) = 91
      Or, 'a' = 91
      Required sum = a - 1 + a + 1 = 2a = 2 × 91 = 182

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