9th Class Mathematics Related to Competitive Exam Question Bank Arithmetic

  • question_answer
    The units digit of every prime number (other than 2 and 5) must be necessarily

    A)  1, 3 or 5              

    B)  1, 3, 7 or 9  

    C)  7 or 9                   

    D)         1 or 7

    Correct Answer: B

    Solution :

    Not Available


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