14. A stationary shop offers four major types of stationary to customers. The prices and quantities sold in 2020 and 2021 are given in the following table. 2020 2021 Food Price ($) Quantity Price ($)...

Extracted text: 14. A stationary shop offers four major types of stationary to customers. The prices and quantities sold in 2020 and 2021 are given in the following table. 2020 2021 Food Price ($) Quantity Price ($) Quantity Pencil 3 65 4 70 Pen 6. 90 12 80 Eraser 7. 24 33 Ruler 15 12 20 20 (a) Using 2020 as the base year, calculate the Laspextes price index of 2021. (b) Using 2019 as the base year, calculate the Paasche price index of 2021. (c) Using the results in part (a) and (b), calculate the Fisher price index of 2021.