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In a survey of 60 people, it was found t...

In a survey of 60 people, it was found that 25 people read newspaper H, 26 read newspaper T, 26 read newspaper I, 9 read both H and I, 11 read both H and T, 8 read both T and I, 3 read all three newspapers. Find:
the number of people who read exactly one newspaper.

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In a survey of 60 people, it was found that 25 people read newspaper H, 26 read newspaper T, 26 read newspaper I, 9 read both H and I, 11 read both H and T, 8 read both T and I, 3 read all three newspapers. Find: the number of people who read at least one of the newspapers.

In a survey of 60 people , it was found that 25 people read newspaper H, 26 read newspaper T,26 read newspaper I , 9 read both H and I, 11 read both H and T. S read both T and I, 3 read all there newaspaper . Find b: (i) the number of people who read at least one of the newspaper . (ii) the number of people who read exactly one newspaper.

In a Survey of 5,000 people in town, 2250 were listed as reading English News paper 1750 as reading Hindi News Paper and 875 were listed as reading both Hindi or English news paper. Find how many people do not read Hindi or English News paper. Find how many people only English Nes Paper.

In a town of 840 persons, 450 persons read Hindi, 300 read English and 200 read both. Then the number of persons who read neither is :

In a survey of population of 450 people, it is found that 205 can speak English, 210 can speak Hindi and 120 people can speak Tamil. If 100 people can speak both Hindi and English, 80 people can speak both English and Tamil, 35 people can speak Hindi and Tamil and 20 people can speak all the three languages, find the number of people who can speak English but not a Hindi or Tamil. Find also the number of people who can speak neither English nor Hindi nor Tamil.

In a hostel, 60% of the students read Hindi newspaper, 40% read English newspaper and 20% read both Hindi and English newspapers. A student is selected at random. (a) Find the probability that she reads neither Hindi nor English newspapers. (b) If she reads Hindi newspaper, find the probability that she reads English newspaper (c) If she reads English newspaper, find the probability that she reads Hindi newspaper.

In a college of 300 students , every student reads 5 newspapers and every newspaper is read by 60 students.The number of newspaper is :

In a certain city, only 2 newspapers A and B are published. It is known that 25% of the city population read A and 20% read B while 8% reads both A and B. It is also known that 30% of those who read A but not B look into advertisement and 40% of those who read B but not A look into advertisements while 50% of those who read both A and B look into advertisements. What is the percentage of the population who read an advertisement?

OSWAAL PUBLICATION-SAMPLE PAPER 7-EXERCISE
  1. Convert (1+7i)/(2-i)^2 in the polar form.

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  2. In a survey of 60 people, it was found that 25 people read newspaper H...

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  3. In a survey of 60 people, it was found that 25 people read newspaper H...

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  4. Verify by the method of contradiction that sqrt 5 is irrational.

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  5. Let R be a relation on the set Z of all integers defined by:(x,y) in R...

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  6. Let R be a relation on the set Z of all integers defined by:(x,y) in R...

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  7. Find the derivative of f(x)=(2x+3)/(x-2) from the first principle.

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  8. Let z(1) =2-I, z(2) =-2 + i, Find (i) (Re(z(1)z(2))/barz(1)), (ii) I...

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  9. Let z(1) =2-I, z(2) =-2 + i, Find (i) (Re(z(1)z(2))/barz(1)), (ii) I...

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  10. Find the value of n such that ""^(n)P(5)=42""^(n)P(3), n gt 4

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  11. If the sum of n terms of an A . P is 3n^(2)+5n and its m^(th) term is ...

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  12. For any real number of x and y,cos x = cos y,prove that x=2npi+-y whe...

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  13. Find the equation of the hyperbola where foci are (0,+-12) and the len...

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  14. Find the Middle terms in (2x^(2)-(1)/(sqrt(x)))^(11)

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  15. In a lottery 10,000 tickets are sold and ten equal prizes are awarded....

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  16. In a lottery 10,000 tickets are sold and ten equal prizes are awarded....

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  17. In a lottery 10,000 tickets are sold and ten equal prizes are awarded....

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  18. Define constant function.Draw the graph of constant function.Write the...

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  19. Prove that cos 20^@ cos 40^@ cos 60^@ cos 80^@=1/16.

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  20. Solve graphically x+2y le 10, x+y ge 1, x-y le 0, y le 0

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