A water filter tank is 1 m wide, 0.6 m deep, and 1.2 m long. It takes 1.5 hours to fill it. At what rate is water being filled (in liters per minute)?
Show answer & explanation
Correct answer: A
Explanation
Given:
Length = 1.2 m
Width = 1 m
Depth = 0.6 m
Time = 1.5 hours
Formula:
Volume = Length × Width × Depth
Volume = 1.2 × 1 × 0.6 = 0.72 m³
1 m³ = 1000 L
Water = 0.72 × 1000 = 720 L
Time = 1.5 hours = 90 minutes
Rate = 720 / 90 = 8