The result of an examination given to a class on three papers A, B and C are : 40% failed in paper A, 30% failed in paper B, pe cunq pou 6upei prace ot y drcen MOITUJO2 раper C. loak 15% failed in paper A and B both, 12% failed in B and C both, 25% failed in 10% failed in A and C both and 30% failed in all the three A, B and C. What is the probability of a randomly selected candidate, passing in all the three papers.b

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