Civil Service Exam Reviewer · Data Interpretation · medium

Library Books by Category

Study the horizontal bar graph below. It shows the number of books in each category of a school library. Use it to answer the questions that follow.

How many books does the library have in all?

  1. 900
  2. 920
  3. 850
  4. 910

Answer

D. 910

Solution

140 + 260 + 110 + 95 + 175 + 130 = 910.

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  1. Which category has the MOST books?
  2. What was the percent DECREASE in electricity use from May to June?
  3. At ₱11.50 per kWh, what was the electricity bill for May?
  4. By how many kWh did use increase from February to May?
  5. What was the total electricity use from January to June?
  6. In which month was electricity use the LOWEST?
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  8. What was the TOTAL harvest of all four farms?
  9. What is the simple average of the four farms' yields per hectare?
  10. What is the difference between the highest and the lowest yields per hectare?

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