Should-cost of a moulded plastic part
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The prompt
The fictional Pune appliance maker buys 400,000 moulded plastic drum covers a year. The supplier quotes INR 300 per part. Each part uses 1.25 kg of plastic resin at INR 120 per kg. It takes 60 seconds on a moulding machine that costs INR 2,400 an hour to run, including its depreciation and power. Labour to trim and pack is INR 10 per part. Allow 15 percent of direct cost for overhead and scrap, and a 10 percent profit margin for the supplier on top. What should the part cost, and how big is the gap?
Practice with a partner
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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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