[Leejohnston]

[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