Homework Answers
According to the question, In each year
At first lake Eric contains 35% of pollutant
And lake Ontario contains 65% of pollutant
At second time
In Lake Ontario 90% of that pollutant remains and rest flow to lake Eric
So, actual percentage of pollutant in lake Ontario is 90% of 65
Which is equal to 58.5
And actual percentage of pollutant in lake eric= 35% remain +10% of 65 pollutant flown from river Ontario
=35+6.5
=41.5% of pollutant
Lake Ontario contains 58.5% of pollutant every year
And Lake Eric contains 41.5% of pollutant every year in the long run
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