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In a suvey of 5000 persons in a town, it...

In a suvey of 5000 persons in a town, it was found that 45% of the persons know language A, 25% know language B, 10% know language C, 5% know languages A and B, 4% know Languages B and C, and 4% know languages A and C. if 3% of the persons know all the three Languages find the number of persons who knows only Language A.

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