Civil Service Exam Reviewer · Data Interpretation · hard

Monthly Electricity Use

Study the bar graph below. It shows a household's electricity use (in kWh) from January to June. Use it to answer the questions that follow.

What was the percent DECREASE in electricity use from May to June?

  1. 3.8%
  2. 3.66%
  3. 15%
  4. 4%

Answer

B. 3.66%

Solution

(410 − 395) ÷ 410 × 100 = 3.66%.

More Data Interpretation questions

  1. At ₱11.50 per kWh, what was the electricity bill for May?
  2. By how many kWh did use increase from February to May?
  3. What was the total electricity use from January to June?
  4. In which month was electricity use the LOWEST?
  5. Which farm produced the LARGEST total harvest?
  6. What was the TOTAL harvest of all four farms?
  7. What is the simple average of the four farms' yields per hectare?
  8. What is the difference between the highest and the lowest yields per hectare?
  9. Which farm had the HIGHEST yield per hectare?
  10. What is the central angle of the desktop slice of the pie chart?

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