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10 Apr 2021, 03:01
Kudos
Bookmarks
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
77% (03:04) correct
23%
(03:16)
wrong
based on 284
sessions
History
Date
Time
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Not Attempted Yet
80 students applied in 3 different exams – A, B, and C. 50% of the students appeared in exam A, 40% in exam B, and 45% in exam C. If only 10% of the students appeared in all three exams and everyone appeared for at least one exam, then how many students appeared only in 1 of the three exams?
A. 15
B. 45
C. 60
D. 90
E.120
A. 15
B. 45
C. 60
D. 90
E.120
10 Apr 2021, 04:01
Kudos
Bookmarks
junii
You can do it best through the Venn diagram.
If you have understood the concept of Venn Diagrams, you don't require to mug up any formula, and you can work your solutions through the figure.
C as shown in attached figure
Attachments
Untitled%.png [ 77.32 KiB | Viewed 4784 times ]
General Discussion
19 Mar 2026, 12:41
Kudos
Bookmarks
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A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.
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