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1. 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 ?
- A. 0
- B. 0
- C. 0
- D. 0
Answer: Option B
Explanation:
( 7 - x) + x + ( 8 - x) + 3 = 15
18 - x = 15
x = 18 - 15
x = 3.
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