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In a town of 10000 families, it was foun...

In a town of 10000 families, it was found that 40% families buy newspaper A, 20% families buy newspaper B and 10% families buy newpaper C, 5% families buy newspaper A and B, 3% buy newspapers B and C and 4% buy newspaper A and C. If 2% families buy all the three newspapers, then number of families which buy A only is

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In a town of 10,000 families it was found that 40 % families buy newspaper A, 20 % buy newspaper B and 10 % buy newspaper C .also 5 % families buy newspaper A and B 3 % buy newspaper B and C and 4 % buy newspaper A can C ,If 2 % families buy all the three newspaper , then number of families which buy newspaper A only is

In a town of 10,000 families, it was found that 40% families buy newspaper A, 20% by newspaper B and 10% buy newspaper C. Further 5% buy A and B, 3% buy B and C, 4% buy A and C. If 2% of the families buy all the three newspaper find: Number of families that buy none of the three newspapers.

In a hostel, 60% of the students read Hindi newspaper, 40% read English newspaper and 20% read both Hindi and English news paper. A student is selected at random. If she reads Hindi newspaper, find the probability that she reads English newspaper.

In a hostel, 60% of the students read Hindi newspaper, 40% read English newspaper and 20% read both Hindi and English news paper. A student is selected at random. If she reads English newspaper, find the probability that she reads Hindi newspaper.

An item is manufacture by three machines A, B and C. out of the total number of items manufactured during a specified period, 50% are manufactures on A. 30% on B and 20% on C. 2% on the items produced on A and 2% of items produced on B are defective, and 3% of these produced on C are defective. All the items are stored at one godown. One item is drawn at random and is found to be defective. what is the probability that it is manufactured on machine A?

Kamala borrowed Rs 26,400 from a Bank to buy a scooter at a rate of 15% p.a. compounded yearly. what amount will she pay at the end of 2 years and 4 months to clear the loan?

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?

MODERN PUBLICATION-RELATIONS AND FUNCTIONS -EXERCISE
  1. Consider the following relations: R = {(x, y) | x, y are real numbers ...

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  2. Let S={1, 2, 3,4}. The total number of unordered pairs of disjoint sub...

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  3. The domain of the function f(x) = 1/(sqrt(|x|-x)) is :

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  4. Let P = {theta: sin theta- cos theta= sqrt2 cos theta} and Q= {theta: ...

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  5. Let f(x)=x^2a n dg(x)=sinx for all x in R Then the set of all x satis...

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  6. In a town of 10,000 families, it was found that 40% families buy newsp...

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  7. In a town of 10000 families, it was found that 40% families buy newspa...

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  8. In a town of 10000 families, it was found that 40% families buy newspa...

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  9. In a town of 10,000 families, it was found that 40% families buy newsp...

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  10. Given A = {x: pi/6 le x le pi/3} and f (x) = cos x -x(1 + x), find f (...

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  11. Prove that f (x) =x-[x], where [x] denotes the integral part of x not ...

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  12. Find the domain of the function f(x)= ([x]+1)/([x]-1), where [x] denot...

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  13. Find the domain of the following function : f(x)= 1/(sqrt(|x|-x)).

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  14. Find the domain of the following function : f(x)= sqrt(cos(sinx))+ s...

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  15. Find the domain of the following : f(x) = 1/(log10(1-x))+ sqrt (x+2)...

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  16. Find the domain and range of the following function : f(x) =1 /(sqrt...

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  17. Find the domain and range of the following function : f(x) = sin (lo...

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  18. Find the domain of definition of the function f (x) given by : f(x) = ...

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  19. Find the natural number a for which sum(k=1)^(n)f(a+k)=16(2^(n)-1), wh...

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  20. A function f : R rarr R, where R is the set of real numbers, is define...

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