πŸ“’ Too many exams? Don’t know which one suits you best? Book Your Free Expert πŸ‘‰ call Now!

  • google app store apple app store
  • βœ–

      Question

      In a jar, there are (x + 8) red balls, β€˜x’ blue

      balls, and (x + 2) black balls. If the probability of picking two blue balls at random is (1/45), then find the value of β€˜x’.
      A 10 Correct Answer Incorrect Answer
      B 12 Correct Answer Incorrect Answer
      C 10 Correct Answer Incorrect Answer
      D 5 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      According to the question, Total number of balls in the jar = (x + 8 + x + x + 2) = (3x + 10) According to the question, Since the number of balls cannot be negative, Therefore, x = 5

      Practice Next
      ask-question