Problema Solution
A fuel oil distributor has 120,000 gallons of fuel with 0.9% sulfur content, which exceeds pollution control standards of 0.8% sulfur content. How many gallons of fuel oil with a 0.3% sulfur content must be added to the 120,000 gallons to obtain fuel oil that will comply with the pollution standards?
Answer provided by our tutors
let
x = gallons of fuel oil with a 0.3% sulfur content
0.9*120000 + 0.3*x = 0.8(120000 + x)
by solving we find
x = 24,000 gal
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