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 one storybook? (Give your answer correct to the nearest whole number.)
(a)
Number of students in the school
= 170 + 160 + 170 + 160 + 140
= 800
(b)
Number of students who read at least one storybook
= 800 - 170
= 630
Percentage of students who read at least one storybook
=
630800 x 100%
= 78.75%
≈ 79% (Correct to nearest whole number)
Answer(s): (a) 800; (b) 79%