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If `A_1 sub A_2 sub A_3 sub ...... sub A_50` and `n(A_x) = x -1`, then find `n[nnn_(x=11)^50 A_x]`

A

99

B

98

C

100

D

10

Text Solution

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The correct Answer is:
D
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OBJECTIVE RD SHARMA-SETS-Chapter Test
  1. If A(1),A(2),..., A(100) are sets such that n(A(i))=i+2,A(1)subA(2)sub...

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  2. If A,B and C are three non=empty sets such that A and B are disjoint a...

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  3. If A={n:(n^(3)+5n^(2)+2)/(n)"is an integer"},then the number of elemen...

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  4. If {p in N: "p is a prime" and p=(7n^(2)+3n+3)/(n)"for some n" in N}' ...

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  5. A, B and C are three non-empty sets. If A sub B and B subC then which ...

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  6. If A=[1,2,3,4,5,6] then how many subsets of A contain the element 2, 3...

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  7. If S is the set of squares and R is the set of rectangles, then (SuuR)...

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  8. If P is the set of all parallelogram, and T is the set of all trapeziu...

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  9. If n (AnnB)=10, n (BnnC) =20 and n(AnnC)=30, then the greatest possibl...

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  10. If n (annB)=5, n(AnnC)=7 and n(AnnBnnC)=3, then the minimum possible v...

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  11. A and B are any two non-empty sets and A is proper subset of B. If n(A...

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  12. If A, B and C are three non-hempty sets such that any two of them are ...

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  13. If A={p:p=((n+2)(2n^(5)+3n^(4)+4n^(3)+5n^(2)+6))/(n^(2)+2n), n p in Z^...

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  14. If A, B and C are three sets such that A supB supC, then (AuuBuuC)-(An...

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  15. If A1 sub A2 sub A3 sub ...... sub A50 and n(Ax) = x -1, then find n[n...

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  16. If n(A(i))=i+1and A(1)subA(2)sub... subA(99),then n(underset(i-1)overs...

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  17. In a class, 70 students wrote two tests wiz, test-I and test-II 50% of...

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  18. In an election, two contestants A and B contested x% of the total vote...

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  19. In a rehabitation programe, a group of 50 families were assured new ho...

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  20. In an office, every employee likes at least one of tea, coffee and mil...

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