Bracket #38 — the answers

The five questions from November 6, 2026, with their answers, the track each ran on, and the bracket that would have scored 90 on it.

The answers

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.

1. What is 7 factorial — 1 × 2 × 3 and so on up to 7? 5,040 — 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 3,600 to 7,100 is a tenth of the track and scores 90; the whole track scores 0.
2. What is the atomic number of iron? 26 — in the lower third of its track. A bracket from 20 to 32 is a tenth of the track and scores 90; the whole track scores 0.
3. How long is a bowling lane, from the foul line to the head pin? 60 feet — in the lower third of its track. A bracket from 54 to 67 is a tenth of the track and scores 90; the whole track scores 0.
4. At 72 beats a minute, how many times does a heart beat in 7 hours? 30,240 — 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 21,000 to 43,000 is a tenth of the track and scores 90; the whole track scores 0.
5. How tall are the faces on Mount Rushmore? 60 feet — in the lower third of its track. A bracket from 46 to 74 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.