GATE CS 2024 Set 2 — Question 8
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General Aptitude → Quantitative Aptitude → Data Interpretation (Bar, Pie, Graphs, Tables)
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Question
The pie charts depict the shares of various power generation technologies in the total electricity generation of a country for the years 2007 and 2023.
The renewable sources of electricity generation consist of Hydro, Solar and Wind. Assuming that the total electricity generated remains the same from 2007 to 2023, what is the percentage increase in the share of the renewable sources of electricity generation over this period?

Correct answer
(D) 62.5%
Solution
We need to calculate the share of renewable sources (Hydro, Solar, Wind) for both years.Year 2007:
The question asks for the percentage increase in the share.
- Hydro: 30%
- Solar: 5%
- Wind: 5%
- Hydro: 35%
- Solar: 20%
- Wind: 10%
The question asks for the percentage increase in the share.
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