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1.
According to a survey of business firms in a certain city, 750 firms offer their employees health insurance , 640 offer dental insurance and 280 offer health insurance and dental insurance. How many firms offer their employees health insurance or dental
- A. 920
- B. 920
- C. 920
- D. 920
Answer: Option C
Explanation:
Health insurance = 750 firms
Dental insurance = 640 firms
Both Health and Dental insurance = 280 firms
Either Health insurance or Dental Insurance = (750 + 640 - 280) = 1110 firms
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