One day you are grocery shopping when you are approached by Barb B. Queue, the owner of the supermarket’s deli shop. Facing serious competition from other supermarkets and fast food chains, Barb is worried whether his shop is working alright, as lately profits have been stagnating. He had figured that you work in a renowned consultancy and seeks your advice. Because you are a consultant from the bottom of your heart, you agree and sit together with Barb and have a look into his books.
How many burgers per hour must be sold to reach break-even? How can Barb know during which times he had to offer the burger if it was offered for one hour only?
More questions to be added by you, interviewer!