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    • Question

      If in each number, all the digits are written in

      descending order, last digit of how many numbers thus formed will be a prime number? These questions are based on the following set of numbers 523 224 347 758 612
      A 1 Correct Answer Incorrect Answer
      B 2 Correct Answer Incorrect Answer
      C 3 Correct Answer Incorrect Answer
      D 4 Correct Answer Incorrect Answer
      E 5 Correct Answer Incorrect Answer

      Solution

      523 224 347 758 612 532 422 743 875 621

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