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The probability that A , B , C can solve...

The probability that A , B , C can solve a problem are `(4)/(5) , (2)/(3)` and `(3)/(7)` respectively . The probability of the problem being solved by A and B is `(8)/(15)` , B and C is `(2)/(7)` , A and C is `(12)/(35)` . The probability of the problem being solved by all the three is `(8)/(35)` . find the probability that the problem can be solved by atleast one of them .

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