A recipe that makes 6 servings calls for cup of butter. Nancy modifies the recipe so that it can serve 8.

How many cups of butter does Nancy need?

Ten because of the vaule of intuative knowledge our brains are simple. Like this app I will recomend to put down your phone or device and think about your life till the answer has hit you. I will not give the answer because that is not my belief so do it yourself.