+- 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 1–3 : Foundational Challenges (https://theluminarchive.co.uk/forumdisplay.php?fid=40)
+----- Forum: Tier 1 Challenges — Beginner Level (https://theluminarchive.co.uk/forumdisplay.php?fid=56)
+----- Thread: TIER 1 — CHALLENGE 001 — The Leaky Tank (/showthread.php?tid=141)
TIER 1 — CHALLENGE 001 — The Leaky Tank - Leejohnston - 11-14-2025
[border]TIER 1 — Beginner Level[/border]
Tier 1 — Challenge 001 — The Leaky Tank
A small water tank holds 60 litres when full.
It leaks water at a constant rate of 2 litres per hour.
At exactly 12:00 noon, the tank is completely full.
Question:
At what time will the tank reach half full (30 litres)?
Show your reasoning clearly.
? Submit Your Attempt
Post in: Challenge Attempts
Thread title:
Tier 1 Attempt — YourUsername — Challenge 001