Mathematics for IGCSE & O level - Statistical Diagrams (Section 2 - No. 7)
The pictogram below depicts the number of books borrowed, how many books were borrowed on Wednesday? 
20
25
30
35
Paaiškinimas
Wednesday's row has 2 full book icons and one half, each representing 10 books, 2 * 10 + 5 = 25 books