Question

In a group of 50 people, 26 can dance salsa, 11 can dance the tango, and 9 can dance both (see image)

Answer 1

Explanation:

To fill out the blanks, we know the intersection of the two circles is 11. So
We subtract this intersection from T to get #(People that can only dance tango), which is 2 people. Similarly for salsa, 15 are able to. In total, 28 people are able to dance, so there are 22 wall flowers(people that don’t dance)