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  • Question
  • If it is possible to form a number with the second, the fifth and the eighth digits of the number 31549786, which is the perfect square of a two - digit even number, which of the following will be the second digit of that even number ?


  • Options
  • A. 1
  • B. 4
  • C. 6
  • D. None of these

  • Correct Answer


  • Explanation

    The 2nd, 5th and 8th digits of the number 31549786 are 1, 9 and 6 respectively.

     

    The perfect square of a two - digit even number, formed using the digits 1, 9 and 6 is 196.

    And,  14 x 14 = 196 

     

    So, the required even number is 14. Clearly, its second digit is 4.

     

    Hence, the answer is (b).


  • More questions

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      II. Politicians have become habituated to misusing their power.

    • Options
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    • Discuss
    • 2. 
      Statement
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      Conclusion
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    • C. if either Conclusion I or II follows
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    • 3. 
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    • 4. 
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    • 5. 
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    • 8. 32, 13, 51, 24, 46, 20, 72, 45

    • Options
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    • 9. 
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