In a room containing 28 people, all of whom speak at least one of English,…
GATE · 1998 · CS · Question 2 subpartsModified — slightly modified from the official paper; see the solution
In a room containing 28 people, all of whom speak at least one of English, Hindi or Kannada, there are 18 people who speak English, 15 people who speak Hindi and 22 people who speak Kannada. 9 persons speak both English and Hindi, 11 persons speak both Hindi and Kannada whereas 13 persons speak both Kannada and English. How many people speak all the three languages?
- A.
9
- B.
8
- C.
7
- D.
6
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