Answer:
20 minutes
Explanation:
Rate x Time = jobs
The rate is 3 jugs/ 4 minutes.
The number of jobs is 15
Use T for time
3/4T = 15 Multiply both sides by 4/3 to get the variable T by itself
(4/3) 3/4 T = 15(4/3)
T = 20 minutes
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