Question

The price of a gallon of gas in 1992 was $1.13. The CPI in 1992 was...

The price of a gallon of gas in 1992 was $1.13. The CPI in 1992 was 140.3 and the CPI today is 259.9. Paying $1.13 for gas in 1992 is equivalent to paying __ today.

Homework Answers

Answer #1

Cost of gallon today = $2.093

CPI= (cost of gallon in given year/cost of base year)*100

Consider year 1992.

CPI=140.3 (given)

Cost of gallon = $1.13

We can find cost of base year from cpi of 1992 and apply it in today. The equation of CPI changes to

Cost of base year= (cost of gallon in 1992/CPI)*100

Cost of base year= 1.13*100/140.3 = $0.8054

consider today

CPI= 259.9

Cost of base year= $0.8054

Cost of gallon today= (CPI*cost of base year)/100

Cost of gallon today= (259.9*0.8054)/100= $2.093

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