Question

    If the odd digits are decreased by 1 in the number

    63473493, then how many prime numbers remain after rearrangement?
    A Two Correct Answer Incorrect Answer
    B One Correct Answer Incorrect Answer
    C Three Correct Answer Incorrect Answer
    D Four Correct Answer Incorrect Answer
    E Five Correct Answer Incorrect Answer

    Solution

    6 3 4 7 3 4 9 3

    6 2 3 6 2 4 8 2

    Practice Next

    Relevant for Exams: