Pie Charts
Data Interpretation

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Common Information

Use the pie charts below to answer the following questions.

The pie chart in Figure (a) shows the distribution of the New York market share by value of different computer companies in 2005.

Common information image for Pie Charts, Data Interpretation:1665-1

The pie chart in Figure (b) shows the distribution of the New York market share by volume of different computer companies in 2005.

Number of units sold in 2005 in New York = 1,500

Value of units sold in 2005 in New York = US $$$ 1,650,000.

Q.

Common Information Question: 3/3

Over the period 205-06, if sales (value-wise) of IBM PCs increased by 50% and of Apple by 15%, assuming that PC sales of all other computer companies remained the same, by what percentage (approximately) would the PC sales in New York (value-wise) increase over the same period?

 A.

16.1%

 B.

18.3%

 C.

14.5%

 D.

None of these

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Solution:
Option(A) is correct

If we assume the total sales to be 100 in the first year, IBM’s sales would go up by 50% (from 28 to 42) contributing an increase of 14 to the total sales value.

Similarly, Apple’s increase of 15% would contribute an increase of 2.1 to the total sales value.

The net change would he $14 + 2.1$ on 100, i.e., $\textbf{16.1%}$


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