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in Economics by (43.3k points)
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The data about per unit price and weights of four different items in the year 2014 and 2015 are as follows. Compute the index number of the year 2015.

Item Weight Year 2014 Year 2015
Price per unit Price per unit
A 40 32 40
B 25 80 100
C 20 24 30
D 15 4 6

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Best answer

Index number of the year 2015

\(I = \frac{ΣIW}{ΣW}\)

\(=\frac{12875}{100}\)

=  128.75

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