At a local gym there were 55 people working out at 4 p.m., of those people 29 did cardio-vascular exercises and 20 did weight training. If 13 did neither cardio-vascular exercises nor weight training, then how many people did both cardio-vascular exercises and weight training?  Choose the correct choice: A) 62 B) 49 C) 13 D) 12 E) 7
The total number =55   Cardio=29   Weight=20   Neither =13   N(CUW)= N(c) +N(w)-N(C intersection W)+N(neither C or W)   55=29+20-(Intersection)+13=7   Answer:7
<result>E</result>
At a local gym there were 55 people working out at 4 p.m., of those people 29 did cardio-vascular exercises and 20 did weight training. If 13 did neither cardio-vascular exercises nor weight training, then how many people did both cardio-vascular exercises and weight training?