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In a group of 15, 7 have studied Latin, 8 ...

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In a group of 15, 7 have studied Latin, 8 have studied Greek, and 3 have not studied either. How many of these studied both Latin and Greek?

  1. 0
  2. 3
  3. 4
  4. 5
Asked By : YamunaCategory : Logical
Answer
b. 3

Answers

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total 15,here 3 have not study any thing ,so 15-3=12
12 consist of either latin or greek or both
latin only=7
greek only=8
a intersect b=a+b-a union b
7+8-12=3

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