The bar graph shows the number of storybooks read by the pupils in a school.
- How many pupils are there in the school?
- What percentage of the pupils in the school read at least one storybook? (Give your answer correct to the nearest whole number.)
(a)
Number of pupils in the school
= 150 + 110 + 220 + 110 + 210
= 800
(b)
Number of pupils who read at least one storybook
= 800 - 150
= 650
Percentage of pupils who read at least one storybook
=
650800 x 100%
= 81.25%
≈ 81% (Correct to nearest whole number)
Answer(s): (a) 800; (b) 81%