Maths

The probability that John solved a particular problem is 1/3 and the probability that James solved the same problem is 1/5, if they both attempt the problem, what is the probability that it will be solved by at least one of them?

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asked by Ande2
  1. Prob(John can't solve) = 2/3
    prob(james can't solve = 4/5

    prob = 1 - prob(both don't solve)
    = .....

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    posted by Reiny

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