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There are 100 students in a class. In th...

There are 100 students in a class. In the examination, 50 of them failed in Mathematics, 45 failed in Physics, 40 failed in Biology and 32 failed in exactly two of the three subjects. Only one student passed in all the subjects. Then, the number of students failing in all the three subjects is

A

12

B

4

C

2

D

none of these

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The correct Answer is:
C
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MTG-WBJEE-SETS , RELATIONS AND FUNCTIONS-WB JEE PREVIOUS YEARS QUESTIONS (SINGLE OPTION CORRECT TYPE)
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  10. The function f(x)=x^(2)+bx+c, where b and c are real constants, descri...

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  11. Find the range of the function f(x)=3 sin (sqrt((pi^(2))/(16)-x^(2))).

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  14. If f:[0,pi/2)->R is defined as f(theta)=|(1,tantheta,1),(-tantheta,1,...

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  15. Let f:R-> R be defined as f(x)=(x^2-x+4)/(x^2+x+4). Then the range of ...

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  16. Let S={a,b,c}epsilonNxxNxxN:a+b+c=21,a<=b<=c} and T={(a,b,c)epsilon Nx...

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  17. Let R be a relation defined on the set Z of all integers and x Ry whe...

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  18. if A={5^(n)-4n-1: n in N} and B={16(n-1):n in N} then

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  19. If the function R to R is defined by f(x)=(x^2+1)^(35)AA in R then f ...

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  20. Let P be the set of all non-singular matrices of order 3 over ú and Q ...

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  21. On the set R of real numbers we defined xPy i and only if xylt 0. T...

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