The CPI in year 1 was $ 115, while the CPI in year 2 was $ 120.
Since in a simple economy the basket of goods used to calculate the CPI contains two items, shirts and pants, and the basket consists of 3 shirts and 2 pairs of pants, and each item increases in price by $ 1 in year 2, knowing that the price of a shirt in year 1 is $ 25 and the price of a pant the same year is $ 20, to determine the CPI for year 1 and year 2 the following calculations must be performed:
Therefore, the CPI in year 1 was $ 115, while the CPI in year 2 was $ 120.
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