HARD
Andhra Pradesh State Cooperative Bank Assistant
IMPORTANT
Earn 100

ln a town of 10000 families, it was found that 40% families buy newspaper A, 20% families buy newspaper B and 10% families buy newspaper C. 5% buy A and B, 3% buy B and C and 4% buy A and C. If 2% families buy all of three newspapers, then the number of families which buy A only, is _____.

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Important Questions on Set Theory

HARD
Andhra Pradesh State Cooperative Bank Assistant
IMPORTANT
A survey of 500 television viewers produced the following information. 285 watch football, 195 watch hockey, 115 watch basketball, 45 watch football and basketball, 70 watch football and hockey, 50 watch hockey and basketball, 50 do not watch any of the three games. The number of viewers, who watch exactly one of the three games are: