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

920

1,100

1,110

1,030

1,490

Description (বিবরণ) :

প্রশ্ন: 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

ব্যাখ্যা:

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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