# DI Bar Graphs: Stacked Bars

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## DI Bar Graphs: Stacked Bar Graphs

The following chart gives the revenue share of different companies in the tech sector in Cuckooland. :

In 2002, the growth rate of the overall sector was 39%, what was the growth rate seen by SCT?

1. 50%
2. 75%
3. 30%
4. 40%

Choice A

## Detailed Solution

Note that we have done a very detailed analysis of how to go about solving stacked bar charts (similar to pie charts in many ways) in the solution to question 1 in this set. So, kindly go through that to get more insights. Let 2002 revenues be Z, and let 2001 revenues be Y. We know ${ \frac{Z}{Y}=1.39 }$.

Growth rate of SCT is ${ \frac{22.8}{21.1}}$% * $\frac{Z}{Y} - 1$ expressed as a percentage.

Or, ${ \frac{22.8}{21.1} \times 1.39 -1 = 1.5-1=0.5 }$
There was a 50% growth rate. Correct Answer: Choice A

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