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If n (A-B)=10, n(B-A)=23, n(AuuB)=50, th...

If `n (A-B)=10, n(B-A)=23, n(AuuB)=50`, then `n(AnnB)` is

A

7

B

17

C

27

D

33

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The correct Answer is:
B
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ICSE-SETS-MULTIPLE CHOICE QUESTIONS
  1. Which of the following is not correct?

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  2. On real axis if A=[1,5] and B=[3,9] then A-B is

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  3. If n (A-B)=10, n(B-A)=23, n(AuuB)=50, then n(AnnB) is

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  4. Two finite sets A and B are such that AsubB, then which of the followi...

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  5. Two finite sets have m and n elements respectively. The total number o...

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  6. For an two sets A and B, Ann(AuuB) is equal to (i) A (ii) B (ii...

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  7. The symmetric difference of A={0,1,2} and B={2,3,4} is

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  8. The symmetric difference of sets A and B is equal to (i) (A-B)uu(B-...

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  9. The symmetric difference of sets A and B is equal to

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  10. For any two sets X and Y,Xnn(XuuY)' is equal to

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  11. For any two sets A and B, ((A'uuB')-A)' is equal to

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  12. For any two sets A and B [B'uu(B'A)]' is equal to

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  13. For any three sets A,B, and C,(A-B)nn(C-B) is equal to ...

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  14. Let A and B are two disjoint sets and N be the universal set then A'uu...

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  15. Let S=Set of points inside the square, T=set of points inside the tria...

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  16. Let R be the set of points inside a rectangle of sides a and b (a,b gt...

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  17. In a class of 80 students, 39 students play football and 45 students p...

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  18. In a town of 840 persons, 450 persons read Hindi, 300 read English and...

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  19. In a group of 70 people, 52 like soft drinks and 37 like tea and each ...

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  20. A T.V survey gives the following data for T.V watching 59% of the peop...

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