The price index for a 19 inch color television in 1990 was 172.6 and 365.8 on 1999. How much would a comparable set cost in 1999, if the 1990 price cost $129?

Question

The price index for a 19 inch color television in 1990 was 172.6 and 365.8 on 1999. How much would a comparable set cost in 1999, if the 1990 price cost $129?

Answer 1

The phrase "the 1990 price cost $129" is very unfortunate.  price cost!?  Muddled thinking by the author of the question.