the wilson family invited 100 relatives to their christmas party.90 guest 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
10 doesn't have dutch heritage
20doesnt have German heritage
25 doesn't have English heritage
at minimum 45 people had all three heritage
Answer:
45
Step-by-step explanation:
Given : The Wilson family invited 100 relatives to their Christmas party
90 guests had Dutch heritage
80 had German heritage
75 had English heritage.
To Find : What is the minimum number of people who claimed ancestry from all three heritages?
Solution:
Total guest = 100
90 guests had Dutch heritage
Those who are not Dutch = 100 - 90 = 10
80 had German heritage
Those who are not German = 100 - 80 = 20
75 had English heritage.
Those who are not English = 100 - 75 = 25
The number of people who does not claimed ancestry from all three heritages = 10 + 20 + 25 = 55.
The people who claimed ancestry from all these heritages are 100 - 55 = 45
Hence the minimum number of people who claimed ancestry from all three heritages is 45