In a town of 10,000 families, it was found that 40% families buy newspaper A, 20% by newspaper B and 10% buy newspaper C. Further 5% buy A and B, 3% buy B and C, 4% buy A and C. If 2% of the families buy all the three newspaper find:
Number of families that buy none of the three newspapers.

In a town of 10,000 families it was found that 40 % families buy newspaper A, 20 % buy newspaper B and 10 % buy newspaper C .also 5 % families buy newspaper A and B 3 % buy newspaper B and C and 4 % buy newspaper A can C ,If 2 % families buy all the three newspaper , then number of families which buy newspaper A only is

In a hostel, 60% of the students read Hindi newspaper, 40% read English newspaper and 20% read both Hindi and English news paper. A student is selected at random. If she reads English newspaper, find the probability that she reads Hindi newspaper.

In a hostel, 60% of the students read Hindi newspaper, 40% read English newspaper and 20% read both Hindi and English news paper. A student is selected at random. If she reads Hindi newspaper, find the probability that she reads English newspaper.

In a survey of 100 persons it was found that 28 read magazine A, 30 read magazine B, 42 read magazine C, 8 read magazines A and B, 10 read magazines A and C, 5 read magazines B and C and 3 read all three magazines. Find : How many read magazine C only ?

In a survey of 100 persons it was found that 28 read magazine A, 30 read magazine B, 42 read magazine C, 8 read magazines A and B, 10 read magazines A and C, 5 read magazines B and C and 3 read all three magazines. Find : How many read none of three magazines ?