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LessonMathematicsBeginner

The Short Order — Why does serving the quickest first make everyone wait less?

When a lot of people are queuing for one thing, the order you serve them in cannot make anything go faster - but it decides how long everybody waits, and serving the quick jobs first can cut the total waiting in half. You run the window of a waffle wagon with one iron on the last nights of a winter market, with your six-year-old brother standing at the back of the line holding his own coin, and you find out why supermarkets keep a lane for ten items or fewer.

15 min26 questionsGrades 4, 5, 64.0(1 ratings)

VCreated byViafocus

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26 questions

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1Night one - the front of the lineInteractive
2The same five people, any order you likeInteractive
3You served them in a completely different order and the wagon still shut at 9:06. So what did the order actually change?