Assume that there are three types of commodities (A,B and C) that are consumed at the following base-year quantities and prices,as shown in the table below: 
What is the price index at the end of 2008?
Definitions:
Jean Piaget
A Swiss psychologist renowned for his developmental stage theory that children progress through four critical stages of cognitive development.
Assimilation
A cognitive process in which individuals integrate new information with existing knowledge, or in a sociological context, the process by which individuals or groups adapt to the culture of another group.
New Experiences
Encounters or activities that are different from one's previous ones, contributing to learning or personal growth.
Mental Structures
The underlying psychological frameworks that shape how individuals perceive, think, and understand the world.
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