It would take 108000 hours to fill the reservoir.
Equation
An equation is an expression used to show the relationship between two or more variables and numbers.
1 liter = 0.001 m³, 1 hour = 60 minutes
30 liters per minute = 30 * 0.001 / 60 = 0.005 m³ per hour
For 54 m³:
Number of hours = 54 m³ / 0.005 m³ per hour = 108000 hours
It would take 108000 hours to fill the reservoir.
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