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qid 8163 · math

Question: To place the first paving stone in a path, Alex starts at the crate of stones, walks three feet, places the stone, and returns to the crate. For each subsequent stone, Alex walks two feet farther each way. Alex will place the first 50 stones in a path. After returning to the crate from placing the $50^\text{th}$ stone, what is the total distance Alex walked, in feet?

  1. 4950
  2. 50
  3. 90950
  4. 7500
  5. 100
  6. 150
  7. 10000
  8. 5200
  9. 2500
  10. 5050

Our answer: H. 5200 Source quote machine-checked (exact quote)

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How it was answered

Multi-step solver (maze), replayed by code

card: maze · card sha256 c829035113d055f6…

Current source

OpenStax, College Algebra 2e, Section 9.4 "Series and Their Notations"

https://openstax.org/books/college-algebra-2e/pages/9-4-series-and-their-notations

“walk a half-mile. Each Sunday, she walks an additional quarter-mile. After 8 weeks, what will be the total number of miles she has walked?”

Source quote machine-checked (exact quote)

retrieved 2026-09-18T02:26:48.112Z

page text sha256 d9ba7cab448082a6… · content sha256 958c8de911accb70…

addendum maze_qid8163_b4_maze_input_ADDENDUM_source_rs20260918T022648Z · sha256 003300d7d9a06b63… · replaces the version below, addendum sha256 87ef7a90ffe9093d…

Earlier version (superseded)

No public source has been found for this card yet (3 places checked internally).

addendum maze_qid8163_b4_maze_input_ADDENDUM_source · sha256 87ef7a90ffe9093d…

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