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      Question

      There are three distinct numbers a, b and c. If a =

      200, (a + b) = 500 and (c – b) = 100, find the average of a, b and c.
      A 300 Correct Answer Incorrect Answer
      B 258 Correct Answer Incorrect Answer
      C 233 Correct Answer Incorrect Answer
      D 342 Correct Answer Incorrect Answer

      Solution

      ATQ, Given, a = 200, (a + b) = 500 and (c – b) = 100 Therefore, b = 500 – 200 = 300 And, c = 300 + 100 = 400 Required average = (200 + 300 + 400)/3 = 300

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