Of the 200 people attending a conference, 60 have signed up for the Marketing workshop and 180 have signed up for the Accounting workshop. If 50 of the people attending did not sign up for either workshop, then the number of people who signed up for both the Marketing and the Accounting workshops is:
Choose the correct option: A) 60 B) 75 C) 80 D) 85 E) 90
Since the information in the prompt refers to the 'standard' 5 groups, you can use the Overlapping Sets Formula to get to the solution:   Total = Gp.1 + Gp.2 - Both + Neither   200 = 60 + 180 - Both + 50   200 = 290 - Both   Both = 90   Final Answer:   90
<result>E</result>
Of the 200 people attending a conference, 60 have signed up for the Marketing workshop and 180 have signed up for the Accounting workshop. If 50 of the people attending did not sign up for either workshop, then the number of people who signed up for both the Marketing and the Accounting workshops is: