Which activity is the beat example of cardiovascular and strength-training exercises working together?

One very good example of cardiovascular training together with strength-training exercises would be for example crossfit exercising. Exercising in a crossfit-like fashion helps your strength capabilities but is also involved in improving your cardiovascular fitness as well. 

Ok, before buying a burger. think of you diet and calories. how many calories are you suppose to eat a day. and look at how much fat, calories, salt is in it. if it is ok to you, then buy it. but if you think that it's to much fat and salt for you. don't buy !