What’s 30/100x500/1= (30% of 500)=
2 answers:
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Answer:
18 hours
Step-by-step explanation:
The unit rate of intake pipe is [1 tank in 6 hours]
The total unit rate (combined) when 2 work together is [1 tank in 9 hours]
Intake fills up and outlet empties. Thus we can say:
Rate of Intake - Rate of Outlet = Combined Rate
This becomes:
Where x is the rate of outlet pipe [what we are looking for]
Doing algebra we solve for x:
This means "outlet pipe can empty 3 tanks in 54 hours". So that would mean 54/3 = 18 hours to empty 1 tank