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
= 120 + 120 + 130 + 260 + 170
= 800
(b)
Number of students who read at least three storybooks
= 800 - 120 - 120 - 130
= 430
Percentage of students who read at least three storybooks
=
430800 x 100%
= 53.75%
≈ 54% (Correct to nearest whole number)
Answer(s): (a) 800; (b) 54%