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TIER 4 — CHALLENGE 001 — The Echo Ridge Problem - Printable Version +- The Lumin Archive (https://theluminarchive.co.uk) +-- Forum: The Lumin Archive — Core Forums (https://theluminarchive.co.uk/forumdisplay.php?fid=3) +--- Forum: Challenge Arena (https://theluminarchive.co.uk/forumdisplay.php?fid=11) +---- Forum: Tier 4–6 : Intermediate Challenges (https://theluminarchive.co.uk/forumdisplay.php?fid=41) +----- Forum: Tier 4 Challenges — Intermediate (https://theluminarchive.co.uk/forumdisplay.php?fid=59) +----- Thread: TIER 4 — CHALLENGE 001 — The Echo Ridge Problem (/showthread.php?tid=150) |
TIER 4 — CHALLENGE 001 — The Echo Ridge Problem - Leejohnston - 11-14-2025 [border]TIER 4 — Applied Reasoning[/border] Tier 4 — Challenge 001 — The Echo Ridge Problem You stand between two cliffs: Cliff A and Cliff B. You clap your hands and hear **two echoes**: • The first echo arrives after **2.4 seconds** • The second echo arrives after **3.8 seconds** Assume: • Speed of sound ≈ **340 m/s** • You are standing **somewhere between the two cliffs**, not centred Question: How far are you from each cliff? Explain your reasoning clearly. ? Submit Your Attempt Thread title: Tier 4 Attempt — YourUsername — Challenge 001 |