Instructions

Answer the following questions with the given information and the graph:

Alpha company uses Rex as main raw material for manufacturing Item A, Item B, Item C and Item D.

The graph below shows the proportion of items produced and price trend of Rex. Annual Res_Index of an item in a given year is measured as follows:

Res_Index of Item A in Year 2013 = Absolute Value (Production of Item A in 2013 - Production of Item A in 2012) / Absolute Value (Rex Price in 2013 - Rex Price in 2012)

image 40 a
Question 67

From the years mentioned below, in which year average Res_Index of all items manufactured was highest?

1. 2012
2. 2013
3. 2016
4. 2017

Solution

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The production and price of Rex over relevant years is tabulated as follows:

Rex

The Res-Index for the different commodities has been computed and tabulated as follows

Res_Index

As we can see, the average Res-Index is the highest for 2012

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