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

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

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

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

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

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

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

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  8. Find the correct option for the given question : Which of the followin...

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  9. Find the correct option for the given question : Which of the followin...

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  10. Find the correct option for the given question : P = {x | x is a lette...

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  11. Find the correct option for the given question : If T = {1, 2, 3, 4, 5...

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  12. A/An............... set is denoted by phi

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  13. In Venn diagram, we represent the universal set by a .............

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  14. A set containing exactly one element is called the ................. s...

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  15. If U = {2, 4, 6, 8, 10, 12} A = {4, 8, 10} then A' = .............

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  16. Let A and B are two sets such that A sube B, then A ∪ B = ........

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  17. If n (A) = 7, n(B) = 9 and n(A uu B) 14, then n(A nn B) = .....

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  18. A = { I, D, A, N} A = {x | x is a letter of the word...........}

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  19. If T = {5, 10, 15, 20, ...............}, then set T is a/an .............

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  20. Write the following sets using listing method : Letters in the word ' ...

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  21. Write the following sets using listing method : Set of multiples of fi...

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