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
= 210 + 210 + 260 + 150 + 290
= 1120
(b)
Number of pupils who read at least one storybook
= 1120 - 210
= 910
Percentage of pupils who read at least one storybook
=
9101120 x 100%
= 81.25%
≈ 81% (Correct to nearest whole number)
Answer(s): (a) 1120; (b) 81%