at breakfast buffet, 93 people chose coffee for there beverage and 47 people choe juice. Twenty-five people chose both. Each person chose at least one of these beverages. how many visted the buffet
Number(A or B) = Number(A) + Number(B) - Number(A and B)
= 93 + 47 - 25
= .....
115
please tell me the answers
To find out how many people visited the buffet, we need to determine the total number of people who chose coffee or juice.
Let's break down the information given:
Number of people who chose coffee (C) = 93.
Number of people who chose juice (J) = 47.
Number of people who chose both coffee and juice (C ∩ J) = 25.
Using this information, we can use the principle of inclusion and exclusion to find the total number of people who visited the buffet.
Total number of people who visited the buffet (C ∪ J) = C + J - (C ∩ J).
Substituting the given values:
Total number of people who visited the buffet = 93 + 47 - 25 = 115.
Therefore, 115 people visited the buffet.