Q#1 1-5. Henry Ford\'s Model T was originally designed and built to run on ethan
ID: 1139513 • Letter: Q
Question
Q#1 1-5. Henry Ford's Model T was originally designed and built to run on ethanol. Today, ethanol (190-proof alcohol) can be produced with domestic stills for about $0.85 per gallon. When blended with gasoline costing $4.00 per gallon, a 20% ethanol and 80% gasoline mixture costs $3.37 per gallon. Assume fuel consumption at 25 mpg and engine performance in general are not adversely affected with this 20-80 blend (called E20). (1.3) a. How much money can be saved for 15,000 miles of driving per year? b. How much gasoline per year is being converted if one million people use the E20 fuel?Explanation / Answer
Solution :- A
If Drive 15,000 miles with pure gasoline, the cost is :
15000*4/25= 2400$
If one were to drive the same distance with E20, the cost is :
15000*3.37/25= 2022$
The difference between these two figures is:
2400 - 2022 = 378$.
therefore saving of $378
B.
In 100% gasoline, driving is 15,000 miles in a year with average consuming:
15000/25=600 gallons of gasoline.
if 20% ethanol, the gasoline conserved is:
600*.20= 120 gallons per person.
Now for 1.5 million people it is
120*1.5million = 180 million gallons.
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