CA CPT Model Test Paper 5 with solutions for online practice

In a town of 20,000 families it was found that 40% families buy newspaper A,20% families buy newspaper B and 10% families buy newspaper 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, then the number of families which buy A only is: