Answer:
16 liters
Step-by-step explanation:
Using V for the desired volume, the relationship can be expressed using a proportion.
(3 L)/(36 min) = V/(3 h 12 min)
(1/12) L/min = V/(192 min) . . . . simplify the left side; convert to minutes on the right side
(192 min)·(1/12 L/min) = V = 16 L . . . . multiply by the denominator and evaluate
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Comment on the problem statement
We don't actually know how much the roof will leak, since we're only told about a leaky pipe.
