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3 distinct integers are selected at random form 1, 2, 3, …, 20. find out the probability that the sum is divisible by 5

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Knowledge Check

  • A five digit number is formed by writing the digits 1,2,3,4,5 in a random order without repetition. Then the probability that the number is divisible by 4 is

    A
    `3/5`
    B
    `18/5`
    C
    `1/5`
    D
    `6/5`

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