Insurance Schemes: Supermarket Line Insurance
A guaranteed wait of exactly six minutes, which looks good when the cashier rings up each grape individually.
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Free for classrooms, worksheets, slides and other non-commercial use under CC BY-NC 4.0, with credit to Ben Orlin.
Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2017-08-10-insurance-schemes-the-world-needs--insurance-schemes-supermarket-line-insurance/ (CC BY-NC 4.0)Transcript
Supermarket Line Insurance: "Variable line length? We can promise a wait of precisely six minutes!"
"I told you we needed insurance." "How could I have known the cashier would be ringing up each grape individually?"