Should we buy a valve body from a supplier?
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The prompt
A pump maker in Germany makes 100,000 valve bodies a year. Its variable cost is EUR 40 per part (materials, direct labor, energy). The accounting system also allocates EUR 25 per part of factory overhead, which would not go away if production stopped. A supplier in Poland offers EUR 55 per part. Should it buy?
Practice with a partner
1. Send the interviewer link to a friend. They read the case aloud and hold the answers.
2. You open the candidate view: you see only the prompt, a timer and a notes box.
3. Speak the case out loud. Your partner shares data when you ask, then scores you with the rubric.
Interviewer view
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Candidate view
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Clarifying questions, with the interviewer's answers
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