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A survey shows that `63%` of the people watch a news channal whereas `76%` watch another channel. If `x%` of the people watch both channel, then

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CBSE COMPLEMENTARY MATERIAL-SETS AND FUNCTIONS-LONG ANSWER TYPE QUESTIONS
  1. In a town of 10,000 families, it was found that 40% of the families bu...

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

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

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

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

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  6. In a town of 10,000 families, it was found that 40% of the families bu...

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  7. In a group of 84 persons, each plays at least one game out of three vi...

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  8. In a class, 18 students took Physics, 23 students took Chemistry and 2...

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  9. In a class, 18 students took Physics, 23 students took Chemistry and 2...

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  10. In a class, 18 students took Physics, 23 students took Chemistry and 2...

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  11. Using properties of sets and their complements prove that (i)(A cup ...

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  12. Using properties of sets and their complements prove that (ii) A-(A ...

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  13. For any 3 sets A, B and C, prove that : (i) A-(B cupC)=(A-B)cap(A-C)...

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  14. For any 3 sets A, B and C, prove that : (i) A-(B cupC)=(A-B)cap(A-C)...

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  15. Using properties of sets and their complements prove that (v) A cap (...

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  16. If A is the set of all divisors of the number 15. B is the set of prim...

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  17. Two finite sets have m and n elements. The total number of subsets of ...

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  18. If A={4^(n)-3n-1:n in N) and B={9(n-1):n in N} then

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  19. A survey shows that 63% of the people watch a news channal whereas ...

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  20. From 50 students taking examinations in mathematics, physics and chemi...

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