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In a group of 1000 people each may speak...

In a group of 1000 people each may speak either Hindi or English or both, there are 750 people who can speak Hindi and 400 who can speak English. Then number of persons who can speak Hindi only is

A

300

B

400

C

600

D

450

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The correct Answer is:
C
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AAKASH SERIES-SETS AND RELATIONS -PRACTICE EXERCISE
  1. In a group of 1000 people each may speak either Hindi or English or bo...

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  2. Number of subsets of the set A={1,2,3,4} is…………..

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  3. The smallest A such that A cup {1,2} = {1,2,3,5,9} is

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  4. If n(A)=10,n(B)=6 and n( C )=5 for three disjoint sets A, B, C then n(...

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  5. If A={1,2,3,4,5},B ={p,q,r,s} then n(A xxB ) =

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  6. If A={0,1},B={1,2},C={2,3} then (A xx B)nn(A xx C)=

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  7. If aN = {ax : x in N} " then " 3N cap 7N =

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  8. A = {(x,y) : y = 1//x,0 ne x in R} , B = {(x, y) : y = - x, x in R} th...

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  9. If X = {4^(n) - 3n - 1: n in N} " and " Y = {9(n-1): n in N}, where N ...

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

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

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

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

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

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

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

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

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

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

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

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

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