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In a class of 55 students, the number of...

In a class of 55 students, the number of students studying different subjects are 23 in Mathematics, 24 in Physics, 19 in Chemistry, 12 in Mathematics and Physics, 9 in Mathematics and Chemistry, 7 in Physics and Chemistry and 4 in all the three subjects. The number of students who have taken exactly one subject is

A

`15`

B

`30`

C

`22`

D

`27`

Text Solution

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The correct Answer is:
C
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RESONANCE ENGLISH-FUNDAMENTAL OF MATHEMATICS-Exercise
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  2. Consider the following statements : 1. If A={(x,y) in [RxxR : x^(3)+...

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  3. In a class of 55 students, the number of students studying different s...

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  4. In an examination of a certain class, at least 70% of the students fai...

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  5. A and B two sets such that n(A)=3 and n(B)=6, then

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  6. The number of solution of equation x^3-21 x-20=e^x is/are

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  7. If a!=0 then complete set of solution of (x^2-2x+2^(|a|))/(x^2-a^2)>0 ...

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  8. The solution set of inequality ((e^(x)-1)(2x-3)(x^(2)+x+2))/((sin x -s...

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  9. The smallest integral value of a such that |x+a-3|+|x-2a|=|2x-a-3| is ...

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  10. Number of positive integral solution of the equation |x^(2)-3x-3| gt |...

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  11. Number of solution pair of equations y=||x|-2|-2| and y=(x+2)/2equals ...

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  12. For making graph of equations |y|=|f(|x|)| through y=f(x) which order ...

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  13. The sum of all the integral values of a {where a in (-10, 10)} such th...

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  14. Complete set of solution of inequation (3)/(sqrt(2-x))-sqrt(2-x) lt 2 ...

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  15. Complete set of solution of inequation sqrt(3x^2+5x+7)-sqrt(3x^2+5x+2)...

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  16. Complete set of solution of inequation sqrt(x+2sqrt(x-1))+sqrt(x-2sqrt...

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  17. IF log(b)alog(c)a+log(a)blog(c)b+log(a)clog(b)c=3 (where a,b,c are dif...

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  18. Let alpha,beta, are two real solution of equation (log(10)x)^2 + log(1...

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  19. Let a , b , c , d be positive integers such that (log)a b=3/2a n d(log...

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  20. The range of real values of 'p' for which the equation 2log3^2 x-|log...

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