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      Question

      The average of 6 values is 40. If two more values with an

      average of 'x' are added, the overall average increases by 20%. Find the value of 'x'.
      A 72 Correct Answer Incorrect Answer
      B 50 Correct Answer Incorrect Answer
      C 25 Correct Answer Incorrect Answer
      D 65 Correct Answer Incorrect Answer

      Solution

      ATQ,

      Sum of 6 values = 6 ├Ч 40 = 240

      New average of all the numbers = 40 ├Ч 1.2 = 48

      So, sum of 8 numbers = 48 ├Ч 8 = 384

      So, average of two new numbers = (384 - 240) ├╖ 2 = 72

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