Bracket #17 — the answers
The five questions from October 16, 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 people live in London? | 8.9M | 100,000 to 1B, logarithmic | 5.6M to 14M |
| 2 | At what temperature does nitrogen boil? | -320 degrees Fahrenheit | -500 to 100 | -350 to -290 |
| 3 | How tall is the Burj Khalifa? | 2,717 feet | 500 to 5,000 | 2,500 to 2,950 |
| 4 | How fast can a peregrine falcon dive? | 240 miles per hour | 50 to 500 | 220 to 265 |
| 5 | How many seconds are in 48 hours? | 172,800 | 1,000 to 1M, logarithmic | 120,000 to 240,000 |
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 people live in London? 8.9M — 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 5.6M to 14M is a tenth of the track and scores 90; the whole track scores 0.
- At what temperature does nitrogen boil? -320 degrees Fahrenheit — in the lower third of its track. A bracket from -350 to -290 is a tenth of the track and scores 90; the whole track scores 0.
- How tall is the Burj Khalifa? 2,717 feet — near the middle of its track. A bracket from 2,500 to 2,950 is a tenth of the track and scores 90; the whole track scores 0.
- How fast can a peregrine falcon dive? 240 miles per hour — near the middle of its track. A bracket from 220 to 265 is a tenth of the track and scores 90; the whole track scores 0.
- How many seconds are in 48 hours? 172,800 — in the upper third of its track (a logarithmic track, so a tenth of it is a tenth of the powers of ten it spans). A bracket from 120,000 to 240,000 is a tenth of the track and scores 90; the whole track scores 0.
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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.