Problema Solution
The President’s Council on Fitness asked adults who exercise if they walk, run or stretch. Here is the Venn diagram of the results.
Of those adults surveyed, how many walked and stretched?
Answer provided by our tutors
W = adults that walks
S = adults that stretch
#(WÇnot S)=#(W)-#(WÇS)= (68+38+15+20)-(38+15)= 68+20=88
Answer: 88
I would say the number of people who did not stretch was 99 ?
Solution:
#(not S)= 68+20+11 = 99