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      Question

      Find the square of 'x' if the average of 22, 31, 49, 38,

      29, and 'x' is 40.
      A 3010 Correct Answer Incorrect Answer
      B 2520 Correct Answer Incorrect Answer
      C 5041 Correct Answer Incorrect Answer
      D 3621 Correct Answer Incorrect Answer

      Solution

      ATQ,

      22 + 31 + 49 + 38 + 29 + x = 40 × 6

      Or, x = 240 - (22 + 31 + 49 + 38 + 29)

      So, x = 71

      So, required value = 71² = 5041

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