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Mr. Dubey • 100.69K Points
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Q. In a class of 80 students , 50 students know English, 55 know french and 46 know german language. 37 students know english and french, 28 students know french and german, 7 students know none of the languages. Find out how many students know all the three languages?

  • (A) 73
  • (B) 72
  • (C) 50
  • (D) 54
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