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31 May, 21:48

If n is an even integer between 1 and 1989, what is the probability that n^2 is divisible by 8

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  1. 1 June, 00:32
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    0.249874

    Step-by-step explanation:

    After every 4 digits, n squared is divisible by 8 so we have 1989/4 = 497 numbers divisible by 4 after squaring

    probability n=497/1989 = 0.249874

    Probability n=0.249874
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