2QUESTION 2 OF 3
Answer & explanation
The official answer, with Fermi’s reasoning step by step.
Answer & explanation
Official answer
240
hours
How to estimate it
Fermi’s official “Napkin math”
Mozart's catalogue runs past 600 works. How long is the average one? Operas run for hours and a symphony is about half an hour, but there are stacks of short dances and songs in there too, so call it 25 minutes.
- Mozart's works
- ~600
- Average length
- × 25 min
- 600 × 25 ÷ 60
- ≈ 250 hours
Rounded assumptions may give a slightly different estimate. The official answer above is the game’s reference value.
Source calculation & reference
- Mozart 225: The New Complete Edition (Decca and Deutsche Grammophon, 2016)
- 200 CDs
- Total running time
- ≈ 240 hours
- ≈
- 10 days and nights nonstop
Reference cited by Fermi: Mozart 225: The New Complete Edition total running time, as published by the Mozarteum Foundation and Decca
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.