The bar graph shows the number of pupils who borrowed books in Kindness School in a week.
- What was the difference between the number of pupils who borrowed only 1 book each and the number of pupils who did not borrow any book?
- There were 45 pupils who borrowed at least 2 books. How many of these pupils borrowed 3 books?
(a)
Number of pupils who did not borrow any book = 10
Number of pupils who borrowed 1 book each = 20
Number of pupils who borrowed 2 books each = 30
Difference between the number of pupils who borrowed only 1 book each and pupils who did not borrow any book
= 20 - 10
= 10
(b)
Number of pupils who borrowed 3 books each
= 45 - 30
= 15
Answer(s): (a) 10; (b) 15