📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!
  • google app store apple app store
    • ✖

      Question

      Average of 8 numbers is 70. If average of first four and

      last two numbers is 90 and 50, respectively then find the fifth number given that ratio of fifth and sixth number is 3:2, respectively.
      A 50 Correct Answer Incorrect Answer
      B 40 Correct Answer Incorrect Answer
      C 60 Correct Answer Incorrect Answer
      D 66 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Let fifth and sixth numbers be ‘3x’ and ‘2x’, respectively. So, 3x + 2x = 70 × 8 – 90 × 3 – 50 × 2 = 100 Or, 5x = 100 Or, x = 20 So, fifth number = 20 × 3 = 60

      Practice Next
      More Average Questions
      ask-question