Civil Service Exam Reviewer · Data Interpretation · hard

Electricity Generation by Source

Study the stacked area chart below. It shows the electricity generated (in terawatt-hours) from coal, natural gas and renewable sources each year from 2021 to 2025; the layers are stacked, and each layer's own value is printed on it. Use it to answer the questions that follow.

By what percent did renewable generation grow from 2021 to 2025?

  1. 53.12%
  2. 113.33%
  3. 17%
  4. 100%

Answer

B. 113.33%

Solution

(32 − 15) ÷ 15 × 100 = 113.33%.

More Data Interpretation questions

  1. What share of the 2025 total came from renewables?
  2. In which year did renewables FIRST generate MORE electricity than natural gas?
  3. What was the TOTAL electricity generated in 2025?
  4. Which source's generation INCREASED every year?
  5. By what percent does a Metro Manila engineer's salary exceed a Cebu engineer's salary?
  6. What is the combined MONTHLY payroll of 10 nurses and 15 clerks in Cebu?
  7. A Cebu teacher's salary is what percent of a Metro Manila teacher's salary?
  8. What is the average Metro Manila salary of the five occupations?
  9. For which occupation is the salary gap between Metro Manila and Cebu the LARGEST?
  10. The combined Q3 sales of both branches make up what percent of their combined annual sales?

All Data Interpretation questions