The table below gives the prices of four items-A, B, C, and D-sold at a store in 2005 and 2010. 
a.Using 2005 as the base year, calculate the price relative index for the four items.
b.Calculate an unweighted aggregate price index for these items.
c.Find the Laspeyres weighted aggregate index for these items.
d.Find the Paasche index for these items.
e.Construct a weighted aggregate quantity index using 2005 as the base year and price as the weight.
Definitions:
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