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In a group of 950 persons, 750 can speak...

In a group of 950 persons, 750 can speak Hindi and 460 can speak English. Find: How many can speak both Hindi and English. How many can speak English only. How many can speak Hindi only

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RD SHARMA ENGLISH-SETS-All Questions
  1. Let A and B be two sets such tat : n(A)=20 ,\ n(AuuB)=42\ a n d\ n(Ann...

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  2. A survey shows that 76% of the Indians like oranges, whereas 62%like ...

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  3. In a group of 950 persons, 750 can speak Hindi and 460 can speak En...

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  4. In a group of 1000 people all of whom speak atleast one of Bengali or ...

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  5. In a survey of 100 persons it was sound that 28 read magazine A, 30 re...

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  6. In a group of 50 persons, 14 drink tea but not coffee and 30 drink tea...

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  7. In a survey of 100 students, how many of students studying the various...

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  8. Write the number of elements in the power set of null set.

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  9. Let A={x ; x in N ,\ x is a multiple of 3} and B={x : x in N\ a n d\...

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  10. If A and B two sets containing 3 and 6 elements respectively and if mi...

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  11. If A={x in C : x^2=1}\ a n d\ B={x in C : x^4=1} , then write A-B\ a...

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  12. Let A and B be two sets having 4 and 7 elements respectively. Then ...

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  13. If A={(x ,\ y): y=1/x ,\ 0!=x in R}a n d\ B={(x , y): y=-x ,\ x in R...

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  14. If A={(x ,\ y): y=e^x ,\ x in R}a n d\ B={(x , y): y=e^(-x),\ x in R...

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  15. If A and B are two sets such that n(A)=20 ,\ n(B)=24\ a n d\ n(AuuB)=4...

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  16. If A and B are two sets such that n(A)=115 ,\ n(B)=326 ,\ n(A-B)=47 , ...

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  17. For any set A ,(A ')' is equal to a.A ' b. A c. varphi d. none of thes...

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  18. Let A and B be two sets in the same universal set. Then, A-B= A\ nnB ...

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  19. The number of all possible subsets of a set containing n elements ?

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  20. For any two sets A and B Ann(AuuB)= a.B b. A c. varphi d. none of the...

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