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In a survey of 400 students in a school,...

In a survey of 400 students in a school, 100 were listed as taking apple juice, 150 as taking orange juice and 75 were listed as taking both apple as well as orange juice. Find how many students were taking neither apple juice nor orange juice.

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Hence 225 students were taking neither apple juice nor orange juice.
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NEW JOYTHI PUBLICATION-SETS-QUESTIONS FROM COMPETITIVE EXAMS
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  13. In a certain town 25% families own a cell phone, 15% families own a sc...

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  14. Two finite sets A and B have m and n elements respectively. If the tot...

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  15. The shaded region in the figure represents

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  16. If n(A)=8 and n(AcapB)=2, then n((AcapB)'capA) is equal to

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  17. If the set A contains 5 elements, then the number of elements in the p...

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  19. If n(A)=43, n(B)=51 and n(AcupB)=75, then n((A-B)cup(B-A))=

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  20. If A and B are non-empty sets such that AsupB, then

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