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10th Class Mathematics Real Numbers Question Bank Real Number

  • question_answer
    A positive number 'n' when divided by 9 leaves a remainder 6 what is the remainder when 3n + 2 is divided by 3?

    A)  0                                

    B)  1            

    C)  2       

    D)  3

    Correct Answer: C

    Solution :

    (c): According to statement of problem, \[n=9k+6\] \[\therefore 3n+2=27k+20\] Dividing \[27k+20\,\,by\,3;\frac{27k+20}{3}=(9k+6)+\frac{2}{3}\] \[\Rightarrow \]Remainder = 2                             


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