Question
Tue October 18, 2011 By:
 

in a town of 1000 families it was found that 40% families buy newspaper A, and 10%families buy C, 5% families buy A and B, 3% buy B and C and 4% buy A and C. If 2% families buy all the three newspapers,find the number of families which buy (1) A only (2) B only (3) none of A,B,c

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Wed October 19, 2011
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