Civil Service Exam Reviewer · Measurement and Geometry · hard

A rectangular tank 1 m × 1 m × 2 m is filled by a hose delivering 40 liters per minute. How long will it take to fill the tank?

  1. 5 minutes
  2. 0.05 minutes
  3. 100 minutes
  4. 50 minutes

Answer

D. 50 minutes

Solution

Volume = 2 m³ = 2,000 L. Time = 2,000 ÷ 40 = 50 minutes.

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