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Lifting a London sandwich line's output
The prompt
A sandwich kitchen in London has the step capacities in the chart above. Lunch demand is 85 sandwiches an hour over a three-hour peak, and each sandwich earns GBP 3 of contribution. A second assembly worker would raise Assemble to 100 an hour and cost GBP 30,000 a year. Is it worth it?
Your interviewer will share data as you ask for it. Ask clarifying questions, state a hypothesis, then lay out your structure out loud before you calculate.
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