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      Question

      A box contains β€˜x + 1’ green balls, β€˜x + 4’ blue

      balls and β€˜x – 2’ yellow balls. If the probability of drawing a yellow ball is 1/30 less than the probability of drawing a blue ball, find the value of β€˜x’.
      A 77 Correct Answer Incorrect Answer
      B 35 Correct Answer Incorrect Answer
      C 48 Correct Answer Incorrect Answer
      D 59 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      According to question: (x + 4)/(3x + 3) – (x – 2)/(3x + 3) = 1/30 (x + 4 – x + 2)/(3x + 3) = 1/30 6/(3x + 3) = 1/30 3x + 3 = 180 3x = 177 x = 59

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