The Barnes family invited 100 relatives to their Christmas party. 90 guests had Dutch heritage, 80 had German heritage and 75 had English heritage. What is the minimum number of people who claimed ancestry from all three heritages?
Answers
Answer:
45 guests
Step-by-step explanation:
Total number of guests = 100
Number of guests that are not Dutch = 100 - 90 = 10
Number of guests that are not German = 100 - 80 = 20
Number of guests that are not English = 100 - 75 = 25
Find the total number of guests who at least does claim ancestry to all 3 heritages:
Number of guests = 10 + 20 + 25 = 55
Find the minimum number of guests who claimed ancestry to all 3 heritages:
Number of guests = 100 - 55 = 45
Answer: 45 guests
Answer:
45
Step-by-step explanation:
Given the Barnes family invited 100 relatives to their Christmas party. 90 guests had Dutch heritage, 80 had German heritage and 75 had English heritage.
Those who are not Dutch = 100 - 90 = 10
Those who are not German = 100 - 80 = 20
Those who are not English = 100 - 75 = 25
Adding all these we get 10 + 20 + 25 = 55.
The people who claimed ancestry from all these heritages are 100 - 55 = 45