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Estimation Reasoning I — Fermi Problems

Difficulty 3 out of 5 · 12 questions · about 18 minutes

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  • Practice: See the correct answer and a full explanation right after each question.
  • Exam: No feedback during the test — see your full results at the end.

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About this test

Break a real-world quantity into a chain of simpler estimates and multiply/divide through — the classic "Fermi estimation" skill used in consulting and product interviews. Pick the closest order of magnitude, not an exact number.

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