Practice question · Estimate
Along an economy’s PPF: at 10 units of food, one more food costs 1 tool; at 50 units, it costs 3 tools; the pattern continues linearly. Set the slider to the cost of one more food at 90 units, in tools.
Estimate on a scale from 0 tools (0) to 10 tools (10).
Hints
- The cost rises by 2 tools per 40 food units.
- From 50 to 90 is another 40 units.
Show the answer
5 (answers within ±0.5 count)
Why
Rising 1 → 3 → 5 tools: increasing opportunity cost in numbers. The ever-steeper price of the last units is why no economy pushes to a corner of its frontier.
Practise The Production Possibilities Frontier
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