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

The probability that A,B and 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 probaility that the problem can be solved by atleast one of them.

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