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
= 140 + 130 + 220 + 190 + 120
= 800
(b)
Number of students who read at least three storybooks
= 800 - 140 - 130 - 220
= 310
Percentage of students who read at least three storybooks
=
310800 x 100%
= 38.75%
≈ 39% (Correct to nearest whole number)
Answer(s): (a) 800; (b) 39%