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
= 170 + 160 + 150 + 200 + 120
= 800
(b)
Number of pupils who read at least one storybook
= 800 - 170
= 630
Percentage of pupils who read at least one storybook
=
630800 x 100%
= 78.75%
≈ 79% (Correct to nearest whole number)
Answer(s): (a) 800; (b) 79%