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In a class of 70 students takes either S...

In a class of 70 students takes either Sanskrit or Hindi. 40 take Sanskrit, 15 take both Sanskrit and Hindi. Number of students take Hindi is

A

25

B

45

C

55

D

15

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The correct Answer is:
B
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AAKASH SERIES-SETS AND RELATIONS -PRACTICE EXERCISE
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  2. If X = {4^(n) - 3n - 1: n in N} " and " Y = {9(n-1): n in N}, where N ...

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  3. Let A={(x,y)//y=e^(x),x in R},B={(x,y)//y=e^(-x),x in R}, then

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  4. The set A={x:x in R,x^(2)=16," and "2x=6} equals

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  5. Let A and B be two sets such that A xx B has 6 elements. If three elem...

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  6. In a class of 70 students takes either Sanskrit or Hindi. 40 take Sans...

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  7. In a city, three daily newspapers A, B, C are published. 42% of the pe...

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  8. Each student in a class of 40, studies at least one of the subjects En...

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  9. An investigator interviewed 100 students to determine their preference...

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  10. A={a, b, c},B={1,2} then the number of relations from A to B is

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  11. A group of 123 workers went to a canteen for cool drinks, ice - cream ...

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  12. Let L denote the set of all straight lines in a plane. Let a Relation ...

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  13. On the set of integers Z, relation R is defined as ''mRn iff m is a mu...

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  14. If A={a, b, c, d}, then a relation R={(a,b),(b,a),(a,a)} on A is

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  15. If A={1,2,3},B={1,4,6,9} and R is a relation from A to B defined by 'x...

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  16. R is a relation from {11, 12, 13} to {8, 10, 12} defined by y=x-3. The...

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  17. If a relation R is defined on the set Z of integers as follows (a,b)in...

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  18. N is the set of natural numbers and R is a relation on N xx N defined ...

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  19. In the set Z of all integers, which of the following relation R is not...

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  20. Let A and B be two sets containing 2 elements and 4 elements respectiv...

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