A saleman operates a car which averged 15 miles to a gallon of gasoline.By installing a new carburetor the car improves its mileage by 1/5. How much will he save on gasoline during a year in which he covers 5400 miles, if the average cost of gasoline is 35 cents per gallon?
a. $15.75
b. $17.50
c. $21
D. $25.20
E. $26.25
PLEASE ANSWER AND EXPLAIN
Is this about Saudi Arabia??
The last time the price of gas in the U.S. was $0.35 a gallon was in 1970 -- over 40 years ago.
https://www1.eere.energy.gov/vehiclesandfuels/facts/2012_fotw741.html
I've seen a lot of old questions, but this is absolutely ridiculous!
I know the average cost of gasoline is 35 cents per gallon is ridiculous, but just a question
I'll be glad to check your answer.
my answer is c
Right!
Can you please explain how you go this answer please? Thanks!
To find out how much the salesman will save on gasoline during a year, we need to calculate the difference between the mileage before and after installing the new carburetor.
1. Calculate the mileage after installing the new carburetor:
The car initially averaged 15 miles per gallon. By improving the mileage by 1/5, the new mileage is 15 + (1/5) * 15 = 15 + 3 = 18 miles per gallon.
2. Calculate the total gallons of fuel used before and after installing the new carburetor:
Total gallons used before = Total miles covered / Mileage before = 5400 miles / 15 miles per gallon = 360 gallons.
Total gallons used after = Total miles covered / Mileage after = 5400 miles / 18 miles per gallon = 300 gallons.
3. Calculate the savings on gasoline:
The difference in the total gallons used = Total gallons used before - Total gallons used after = 360 gallons - 300 gallons = 60 gallons.
Cost savings on gasoline = Difference in total gallons used * Cost per gallon = 60 gallons * $0.35 = $21.
Therefore, the salesman will save $21 on gasoline during the year.
The correct answer is c. $21.