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Thread: SAT math probability

  1. #1
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    SAT math probability

    SAT math probability question

    If and are two distinct positive integers where . What is the probability that equals 2?

    Thanks!!

  2. #2
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    SAT math probability

    SAT math probability question

    If and are two distinct positive integers where . What is the probability that equals 2?
    The possible positive integer pairs for a and b in order to satisfy the equation are (1,5), (2,4), (4,2), (5,1). The pair (3,3) is omitted, since and must be distinct. Therefore the probability of equals 2 is one out of four, i.e. .

    Hope these help!!

  3. #3
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    Thanks Thomas!!

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