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      Question

      5 positive numbers are written on a piece of paper. Sum

      of first 3 numbers is 40 and ratio of the 4th and the 5th number is 2:3. If difference between the 4th and the 5th number is 17, then find the average of all the numbers.
      A 22 Correct Answer Incorrect Answer
      B 23 Correct Answer Incorrect Answer
      C 25 Correct Answer Incorrect Answer
      D 27 Correct Answer Incorrect Answer

      Solution

      Given, 4th number:5th number = 2:3 Let, 4th number = 2x 5th number = 3x So, 3x – 2x = 17 Or, x = 17 Required average = {(40 + 17 Γ— 2 + 17 Γ— 3)/5} = (125/5) = 25

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