3QUESTION 3 OF 3
Answer & explanation
The official answer, with Fermi’s reasoning step by step.
Answer & explanation
Official answer
164,000,000
Oreos
How to estimate it
Fermi’s official “Napkin math”
The easiest place to start is the US, about 330 million people. How many eat Oreos on a given day? Maybe 1 in 10, two cookies each. They sell everywhere, so call America a third of it.
- Americans
- 330,000,000
- 1 in 10 eat 2 today
- ≈ 66,000,000
- US is a third of the world
- × 3
- 66M × 3
- ≈ 200,000,000
Rounded assumptions may give a slightly different estimate. The official answer above is the game’s reference value.
Source calculation & reference
- Oreo cookies sold each year (Mondelez International)
- ≈ 60,000,000,000
- Days in a year
- ÷ 365
- 60B ÷ 365
- ≈ 164,000,000
Reference cited by Fermi: Mondelez International, 2024
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