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If A = { 1,2,3}, then the elements in it...

If `A = { 1,2,3}`, then the elements in its power sets, is

A

8

B

7

C

4

D

6

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The correct Answer is:
A
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ARIHANT PUBLICATION JHARKHAND-SETS, RELATIONS AND FUNCTIONS-Exam Booster for Cracking Exam
  1. If A = { 1,2,3}, then the elements in its power sets, is

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  2. If A={1,B},where B = {2,3}.Then, P(A) is equal to

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  3. The cardinality of the set P{P[P(phi)]} is

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  4. If A= {a, b, c, d} andB = {b, c, e}, then A cup B is equal to

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  5. If A = { a, b, c} and B = { b, c, e}, then A cap B is equal to

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  6. If A = {a, b, c} and B = {b, c, d, e} be two subsets of the universal ...

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  7. If A = {1, 4, 7, 8},B = {4, 6, 8, 9} andC = {3, 4, 5, 7} be three subs...

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  8. In a group of 850 persons, 600 can speak Hindi and 340 can speak Tamil...

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  9. In a group of 52 persons, 16 drink tea but not coffee and 33 drink tea...

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  10. If A = {a, b, c, e,f},B = {c, d, e,g} and C = {b, c,f,g}. Then, A - ( ...

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  11. If A={1,2,3},B={3,4} and C={4,5,6}. Then, A xx ( B cup C ) is equal to

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  12. A and B are two sets given in such a way that A xx B contains 6 elemen...

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  13. In a group of 60 persons, 40 persons like play cricket and 10 persons...

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  14. If A = {1, 2, 3, 6} and B = {2, 4, 6} be two sets of universal set U =...

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  15. If n ( C cup T ) = 70, n ( C ) = 37 and n ( T ) = 35. Then, n ( C cap ...

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  16. If n ( A cup B ) = 727 , n ( A ) = 600 and n ( A cap B) = 127. Then, n...

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  17. In a class, 300 students speak Hindi, 150 students speak English and 1...

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  18. There are 6000 people in a village, out of which 3500 people read Hind...

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  19. If the Universal Set U = {1, 2, 3,4, 5, 6, 7, 8} and A = {1, 2, 3, 4...

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  20. The number of non-empty subsets of { 1, 2, 3} is

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  21. The number of proper subsets of { 1, 2, 3} is

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