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A survey was conducted to know the hobby...

A survey was conducted to know the hobby of 220 students of class IX. Out of which 130 students informed about their hobby as rock climbing and 180 students informed about their hobby as sky watching. There are 110 students who follow both the hobbies. Then how many students do not have any of the two hobbies? How many of them follow the hobby of rock climbing only? How many students follow the hobby of sky watching only?

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CHETANA PUBLICATION-SETS-EXERCISE
  1. Write with reason, which of the following are finite or infinite : C =...

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  2. Write with reason, which of the following are finite or infinite : D =...

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  3. State which of the following sets are equal : N = {1, 2, 3, 4, ..}

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  4. State which of the following sets are equal : W = { 0, 1, 2, 3, ...}

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  5. State which of the following sets are equal : A = {x | x = 2^n, n in N...

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  6. If X = {1, 2, 3}, then write any three subsets of X.

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  7. U = {2, 3, 5, 7, 11, 13, 17, 19, 23}, A = {2} then show the sets U, A ...

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  8. If 50% girls passed in Marathi, 60% girls passed in Science and 40% gi...

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  9. Choose the correct alternative answer for each of the following questi...

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  10. Attempt the following : Write the following set in set builder form : ...

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  11. Attempt any TWO of the following :

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  12. Attempt any TWO of the following : If A = {1, 3, 9, 11, 13} and B = {1...

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  13. Attempt any TWO of the following :U = {1, 2, 3, 7, 8, 9, 10, 11, 12}, ...

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  14. Complete the Venn Digram for the following : U = {1, 2, 3, 4, 5, 7, 8,...

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  15. State with reason, which of the following sets ae empty : A = {x | x^2...

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  16. State with reason, which of the following sets ae empty : B = {x | 5x ...

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  17. State with reason, which of the following sets ae empty : C = {a | a i...

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  18. Let U = {x/x= 2 ^n, n in W, n < 8} be the universal set. A = {y/y= 4 ...

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  19. Out of 100 pesons in a group, 72 persons speak English and 43 persons ...

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  20. A survey was conducted to know the hobby of 220 students of class IX. ...

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