N12

The basket of products consumed in the economy of Wonderland includes 10 ice creams, 2 cakes and 5 roller coaster riddes. The table below shows the prices of the three items contained in the basket in the last 5 years: Prices by year 2016 2017 2018 2019 2020 1 ice cream $2 $1 $1 $2 $2 1 cake $10 $11 $12 $13 $14 1 rolle coaster ride $5 $5 $6 $6 $7 Question: using 2016 as the base year, what was the CPI in 2017? $86.7 $87.7 $90.7 $88.7