Unayak posted an Question
April 14, 2020 • 00:07 am 30 points
  • CSIR NET
  • Physical Sciences

How to solve such questions.which theory part such questions belong to

how to solve such questions.which theory part such questions belong to

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    Paltu Sen best-answer

    This is a question of quantitative aptitude. Unit place of 27^82 is that of 7^82. Now 7 has multiplicity 4 . Now reaminder of (82÷4) is 2. So 7^82 has same unit place digit as that of 7^2 i.e. 9. Hence ans is 9. For details please follow the link below: https://www.google.com/amp/s/wordpandit.com/how-to-find-the-unit-digit-of-a-number/amp/

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