3QUESTION 3 OF 3
Answer & explanation
The official answer, with Fermi’s reasoning step by step.
Answer & explanation
Official answer
200
languages
How to estimate it
Fermi’s official “Napkin math”
There are about 200 countries in the world. Most have a single official language, and plenty share the common ones, so the total lands right around the number of countries.
- Countries in the world
- ~195
- Roughly one official each
- × 1
- Distinct total
- ≈ 200
Rounded assumptions may give a slightly different estimate. The official answer above is the game’s reference value.
Source calculation & reference
- Sovereign states
- ≈ 195
- Distinct named officials
- ~180
- Plus regional / co-officials
- + ~20
- Total distinct
- ≈ 200
Reference cited by Fermi: CIA World Factbook · Ethnologue
How close was your guess?
Your comparison will appear here.
Compare by ratio: divide the larger number by the smaller one. The closer to 1×, the better.