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Bracket #30 — the answers

The five questions from October 29, 2026, with their answers, the track each ran on, and the bracket that would have scored 90 on it.

The answers

#QuestionAnswerTrackA tenth of it, on the answer
1How far away is the Sun?93M miles100,000 to 10B, logarithmic52M to 170M
2How many minutes are in 17 days?24,4801,000 to 100,000, logarithmic19,000 to 31,000
3How many miles is a 10K run?6.2 miles1 to 304.8 to 7.6
4What year was the Rubik’s Cube invented?1,9741,900 to 2,0251,968 to 1,980
5What do the numbers on a roulette wheel add up to?666100 to 2,000580 to 760

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. How far away is the Sun? 93M miles — 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 52M to 170M is a tenth of the track and scores 90; the whole track scores 0.
  2. How many minutes are in 17 days? 24,480 — 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 19,000 to 31,000 is a tenth of the track and scores 90; the whole track scores 0.
  3. How many miles is a 10K run? 6.2 miles — in the lower third of its track. A bracket from 4.8 to 7.6 is a tenth of the track and scores 90; the whole track scores 0.
  4. What year was the Rubik’s Cube invented? 1,974 — near the middle of its track. A bracket from 1,968 to 1,980 is a tenth of the track and scores 90; the whole track scores 0.
  5. What do the numbers on a roulette wheel add up to? 666 — in the lower third of its track. A bracket from 580 to 760 is a tenth of the track and scores 90; the whole track scores 0.

Previous: Bracket #29 (Wed, Oct 28) · Next: Bracket #31 (Fri, Oct 30) · All Bracket solutions

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.