Bracket #2 — the answers
The five questions from October 1, 2026, with their answers, the track each ran on, and the bracket that would have scored 90 on it.
The answers
| # | Question | Answer | Track | A tenth of it, on the answer |
|---|---|---|---|---|
| 1 | How many edges does a cube have? | 12 | 1 to 50 | 9.5 to 14.5 |
| 2 | At 72 beats a minute, how many times does a heart beat in 11 hours? | 47,520 | 1,000 to 1M, logarithmic | 34,000 to 67,000 |
| 3 | How tall is Mount Fuji? | 12,388 feet | 2,000 to 30,000 | 11,000 to 13,800 |
| 4 | How many people live on Earth? | 8.1B | 100M to 100B, logarithmic | 5.7B to 11B |
| 5 | How tall was the Great Pyramid of Giza when it was built? | 481 feet | 100 to 1,500 | 410 to 550 |
Question by question
A question scores 100 minus the bracket’s width as a percentage of the track, if the answer is inside it, and nothing if it is outside. The tenth-of-the-track bracket below is the one a confident player was aiming for.
- How many edges does a cube have? 12 — in the lower third of its track. A bracket from 9.5 to 14.5 is a tenth of the track and scores 90; the whole track scores 0.
- At 72 beats a minute, how many times does a heart beat in 11 hours? 47,520 — near the middle of its track (a logarithmic track, so a tenth of it is a tenth of the powers of ten it spans). A bracket from 34,000 to 67,000 is a tenth of the track and scores 90; the whole track scores 0.
- How tall is Mount Fuji? 12,388 feet — near the middle of its track. A bracket from 11,000 to 13,800 is a tenth of the track and scores 90; the whole track scores 0.
- How many people live on Earth? 8.1B — near the middle of its track (a logarithmic track, so a tenth of it is a tenth of the powers of ten it spans). A bracket from 5.7B to 11B is a tenth of the track and scores 90; the whole track scores 0.
- How tall was the Great Pyramid of Giza when it was built? 481 feet — in the lower third of its track. A bracket from 410 to 550 is a tenth of the track and scores 90; the whole track scores 0.
Previous: Bracket #1 (Wed, Sep 30)
About Bracket
Bracket is Noggin’s estimation puzzle, on the second shelf: five questions a day with a number for an answer, bracketed rather than named, outside the daily line-up. How to play Bracket, or play today’s.