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In a certain factory, machines A, B and C produce bolts. Of their production. machines A. B. and c produce 2% 1 % and 3% defective bolts respectively. Machine A produces 35 % of the total output of bolts. machine B produces 25% and machine C produces 40% A bolts is chosen at random from the factory's production and is found to be defective. The probability it was produced on machine C is

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