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      Question

      If 24 33 x 42 6 51 104 Then, 20% of x + 40% of x

      =? In each of the following questions a number series is given. One term of the series is denoted by x. You have to calculate the value of x and by using the value of x, you have to replace the question mark (?) in the following questions :
      A 33 Correct Answer Incorrect Answer
      B 28 Correct Answer Incorrect Answer
      C 9 Correct Answer Incorrect Answer
      D 16 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      24 + 9 = 33 33 - 18 = 15 15 + 27 = 42 42 - 36 = 6 6 + 45 = 51 Hence, x= 15 Hence, 15 × 20/100 + 15 × 40/100 = 3 + 6 = 9

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