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Official PYQ · 2024Set 2 · Q8MCQ2 marks

GATE CS 2024 Set 2 Q8 — General Aptitude

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​​​​The pie charts depict the shares of various power generation technologies in the total electricity generation of a country for the years 20072007 and 20232023.



The renewable sources of electricity generation consist of Hydro, Solar and Wind. Assuming that the total electricity generated remains the same from 20072007 to 20232023, what is the percentage increase in the share of the renewable sources of electricity generation over this period?

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Answer: D

To find the percentage increase in the share of renewable sources, we first determine the total share of renewable energy (Hydro, Solar, and Wind) for both years from the pie charts.

1. For the year 2007:

  • Hydro = 12%12\%
  • Wind = 3%3\%
  • Solar = 1%1\%
  • Total Renewable Share (2007) = 12%+3%+1%=16%12\% + 3\% + 1\% = 16\%

2. For the year 2023:

  • Hydro = 10%10\%
  • Wind = 10%10\%
  • Solar = 6%6\%
  • Total Renewable Share (2023) = 10%+10%+6%=26%10\% + 10\% + 6\% = 26\%

Since the total electricity generated remains the same for both years, we can directly calculate the percentage increase in the share:

Percentage Increase=Share in 2023−Share in 2007Share in 2007×100\text{Percentage Increase} = \frac{\text{Share in 2023} - \text{Share in 2007}}{\text{Share in 2007}} \times 100 Percentage Increase=26%−16%16%×100=1016×100=62.5%\text{Percentage Increase} = \frac{26\% - 16\%}{16\%} \times 100 = \frac{10}{16} \times 100 = 62.5\%

Thus, the percentage increase in the share of renewable sources is 62.5%62.5\%.

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