SOLUTION: The President's Council on Fitness asked adults who exercise if they walk,run or stretch. Here are the results. Stretch= {35,18,15,38} Walk = {38,15,20,68} Run = (18,15,20,11}

Algebra ->  Formulas -> SOLUTION: The President's Council on Fitness asked adults who exercise if they walk,run or stretch. Here are the results. Stretch= {35,18,15,38} Walk = {38,15,20,68} Run = (18,15,20,11}       Log On


   



Question 472849: The President's Council on Fitness asked adults who exercise if they walk,run or stretch. Here are the results.
Stretch= {35,18,15,38}
Walk = {38,15,20,68}
Run = (18,15,20,11}
Of those adults surveyed, how many ran and stretched? Show all work

Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
What do the numbers represent? If each number represents exactly one adult, then two adults (18 and 15) ran and stretched (simply take the intersection of the sets).