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
= 220 + 160 + 270 + 190 + 200
= 1040
(b)
Number of students who read at least three storybooks
= 1040 - 220 - 160 - 270
= 390
Percentage of students who read at least three storybooks
=
3901040 x 100%
= 37.5%
≈ 38% (Correct to nearest whole number)
Answer(s): (a) 1040; (b) 38%