Home
Class 11
MATHS
In a town of 10000 families, it was foun...

In a town of 10000 families, it was found that 40% families buy newspaper A, 20% families buy newspaper B, 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 newspaper. Find
The number of families which buy newspaper A only.

Text Solution

Verified by Experts

The correct Answer is:
`= 3300`
Promotional Banner

Topper's Solved these Questions

  • SETS

    KUMAR PRAKASHAN|Exercise SOLUTIONS OF NCERT EXEMPLAR PROBLEMS (OBJECTIVE TYPE QUESTIONS)|14 Videos

  • SETS

    KUMAR PRAKASHAN|Exercise SOLUTIONS OF NCERT EXEMPLAR PROBLEMS (FILLERS)|10 Videos

  • SETS

    KUMAR PRAKASHAN|Exercise SOLUTIONS OF NCERT EXEMPLAR PROBLEMS (SHORT ANSWER TYPE QUESTIONS)|37 Videos

  • SEQUENCE AND SERIES

    KUMAR PRAKASHAN|Exercise Solutions of NCERT Exemplar Problems -Question of Module|19 Videos

  • STATISTICS

    KUMAR PRAKASHAN|Exercise QUESTION OF MODULE (KNOWLEDGE TEST)|9 Videos

Similar Questions

Explore conceptually related problems

In a town of 10000 families, it was found that 40% families buy newspaper A, 20% families buy newspaper B, 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 newspaper. Find The number of families which buy none of A, B and C.

In a town of 10,000 families it was found that 40% family buy newspaper A, 20% 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 find the number of families which buy A only

In a hostel, 60% of the students read Hindi newspaper, 40% read English newspaper and 20% read both Hindi and English newspapers. A student is selected at random. (a) Find the probability that she reads neither Hindi nor English newspapers. (b) If she reads Hindi newspaper, find the probability that she reads English newspaper (c) If she reads English newspaper, find the probability that she reads Hindi newspaper.

A factory has two machines A and B. Past record shows that machine A produced 60% of the items of output and machine B produced 40% of the items. Further, 2% of the items produced by machine A and 1% produced by machine B were defective. All the items are put into one stockpile and then one item is chosen at random from this and is found to be defective. What is the probability that it was produced by machine B?

A man buys a motorcycle in Rs 60,000. If its price decreases every year 10%, then what will be its price at the end of fourth year?

An item is manufactured by three machines A, B and C. Out of the total number of items manufactured during a specified period, 50% are manufactured on A, 30% on B and 20% on C. 2% of the items produced on A and 2% of items produced on B are defective, and 3% of these produced on C are defective. All the items are stored at one godown. One item is drawn at random and is found to be defective. What is the probability that it was manufactured on machine A ?

In a certain city, only two newspapers A and B are published. It is known that 25% of the city population reads A and 20% reads B, while 8% reads A and B. It is also known that 30% of those who rad A but not B, look into advertisements and 40% of those who read B but not A, look into advertisements while 50% of those who read both A and B, look into advertisement. What percent of the population read on advertisement?

In a certain lottery 10,000 tickets are sold and ten equal prizes are awarded. What is the probability of not getting a prize if you buy (a) one ticket (b) two tickets (c ) 10 tickets.

A company has three plants at which it produces a certain item. 30% are produced at plant A, 50% at plant B and 20% at plant C. Suppose that 1%, 4% and 3% of the items produced at plants A, B and C respectively are defective. If an item is selected at random from all those produced, what is the probability that the item is defective ?

Which two families are included into carnivora ? (A) Panthera and canidae (B) Felidae and Canidae (C) Canidae and amphibians (D) Canidae and Ratteae

KUMAR PRAKASHAN-SETS-SOLUTIONS OF NCERT EXEMPLAR PROBLEMS (LONG ANSWER TYPE QUESTIONS)
  1. If A, B and C be sets. Then, show that, A cap (B cup C) = (A cap B) cu...

    Text Solution

    |

  2. Out of 100 students, 55 passed in Mathematics and 67 passed in Physics...

    Text Solution

    |

  3. Out of 100 students, 15 passed in English, 12 passed in Mathematics, 7...

    Text Solution

    |

  4. Out of 100 students, 15 passed in English, 12 passed in Mathematics, 7...

    Text Solution

    |

  5. Out of 100 students, 15 passed in English, 12 passed in Mathematics, 7...

    Text Solution

    |

  6. In a class of 60 students, 25 students play cricket and 20 students pl...

    Text Solution

    |

  7. In a survey of 200 students of a school, it was found that 120 study M...

    Text Solution

    |

  8. In a town of 10000 families, it was found that 40% families buy newspa...

    Text Solution

    |

  9. In a town of 10000 families, it was found that 40% families buy newspa...

    Text Solution

    |

  10. In a group of 50 students, the number of students studying French, Eng...

    Text Solution

    |

  11. In a group of 50 students, the number of students studying French, Eng...

    Text Solution

    |

  12. In a group of 50 students, the number of students studying French, Eng...

    Text Solution

    |

  13. In a group of 50 students, the number of students studying French, Eng...

    Text Solution

    |

  14. In a group of 50 students, the number of students studying French, Eng...

    Text Solution

    |

  15. In a group of 50 students, the number of students studying French, Eng...

    Text Solution

    |

  16. In a group of 50 students, the number of students studying French, Eng...

    Text Solution

    |

  17. In a group of 50 students, the number of students studying French, Eng...

    Text Solution

    |