The bar graph shows the number of storybooks read by the students in a school.
- How many students are there in the school?
- What percentage of the students in the school read at least three storybooks? (Give your answer correct to the nearest whole number.)
(a)
Number of students in the school
= 100 + 200 + 130 + 270 + 100
= 800
(b)
Number of students who read at least three storybooks
= 800 - 100 - 200 - 130
= 370
Percentage of students who read at least three storybooks
=
370800 x 100%
= 46.25%
≈ 46% (Correct to nearest whole number)
Answer(s): (a) 800; (b) 46%