What was the question for this implicit rationale, and corresponding answer?
If Monroe and her husband ate 80 granola bars, then the number of granola bars the children shared is 200 - 80 = 120. Each child received 20 bars, and there were 120 granola bars, meaning there were 120 / 20 = 6 children in the family.
 The answer: 6
The question: Monroe made 200 granola bars for her family. She and her husband ate 80, and the rest was divided equally among her children. If each child received 20 granola bars, how many children are in the family?