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The report of one survey of 100 students...

The report of one survey of 100 students stated that the numbers studying the various languages were : Sanskrit, Hindi and Tamil, 5, Hindi and Sanskrit, 10, Tamil and Sanskrit, 8, Hindi and Tamil, 20, Sanskrit 30, Hindi 23, Tamil 50. The surveyor who prepared the report was fired. Why ?

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ML KHANNA-CONCEPTS OF SET THEORY -Problem Set (1)
  1. Let n(U)=700, n(A)=200,n(B)=300 and n(AnnB)=100, then find n(A'nnB')

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  2. In a group of 1000 people, there are 750 who can speak Hindi and 400 w...

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  3. Of the members of three athletic teams in a certain school, 21 are in ...

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  4. An investigator interviewed 100 students to determine their preference...

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

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  6. A survey shows that 63% of the Indians like cheese, whereas 76% like a...

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  7. In a pollution study of 1500 Indian rivers the following data were rep...

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  8. A group of 123 workers went to a canteen for cold drinks, ice-cream an...

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  9. A survey of 500 television watchers produced the following information...

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  10. In a town of 10,000 families it was found that 40% families buy newspa...

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  11. In a town of 10,000 families it was found that 40% families buy newspa...

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  12. In a town of 10,000 families it was found that 40% families buy newspa...

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  13. The report of one survey of 100 students stated that the numbers study...

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  14. A survey conducted on 600 students of B.A. part I classes of a college...

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  15. Let A, B, C be subsets of the universal set U. If n(U)=692,n(B)=230,</...

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  16. If the set A contains 5 elements, then the number of elements in the p...

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  17. Given A={x:x is a root of x^(2)-1=0},B={x:x is a root of x^(2)-2x+1=0}...

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  18. Let S = {1,2,3,4}. The total number of unordered pairs of disjoint sub...

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  19. 25 people for programme A, 50 people for programme B, 10 people for bo...

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  20. Let X""=""{1,""2,""3,""4,""5} . The number of different ordered pairs ...

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