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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?

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? Correct Answer 3

Total Student = Have studied Latin + Have studied Greek - Have not studied either + have studied both latin and greek             15 = 7 + 8 - 3 + P             P = 15 - 7 - 8 +3             P = 18-15            P = 3 (Ans)

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