3QUESTION 3 OF 3
Answer & explanation
The official answer, with Fermi’s reasoning step by step.
Answer & explanation
Official answer
85,932
stores
How to estimate it
Fermi’s official “Napkin math”
Most people picture McDonald's as the biggest chain on Earth, about 40,000 restaurants. 7-Eleven is bigger. How much bigger? It is the default corner shop across Japan, Thailand and Taiwan, so call it double.
- McDonald's worldwide
- ~40,000
- 7-Eleven is bigger
- × 2
- 40,000 × 2
- ≈ 80,000
Rounded assumptions may give a slightly different estimate. The official answer above is the game’s reference value.
Source calculation & reference
- Japan
- 21,743
- Asia Pacific outside Japan
- 48,673
- North America and the Nordics
- 15,516
- ≈
- 85,932
Reference cited by Fermi: Seven & i Holdings investor materials: 85,932 stores across 20 countries and regions (Japan 21,743, Asia Pacific 48,673, North America 15,151, Nordics 365)
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.