Question

Out of 50 students, 30 like red, and 29 like green. How many students like both red and green?

a) 1
b) 0
c) 29
d) 30

Answer 1

The number of students who like both red and green is 0.

Step-by-step explanation:

To find the number of students who like both red and green, we can use the concept of set intersection. Out of the 50 students, 30 like red and 29 like green. Let's assume that the set of students who like red is R and the set of students who like green is G. So, we need to find the number of students in the intersection of R and G, denoted as R ∩ G.

Since 30 students like red and 29 like green, the maximum number of students who could like both red and green is 29 (since the total number of students who like green is less than the total number of students who like red).

Therefore, the answer is b) 0.