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 three storybooks? (Give your answer correct to the nearest whole number.)
(a)
Number of pupils in the school
= 180 + 110 + 160 + 240 + 270
= 960
(b)
Number of pupils who read at least three storybooks
= 960 - 180 - 110 - 160
= 510
Percentage of pupils who read at least three storybooks
=
510960 x 100%
= 53.125%
≈ 53% (Correct to nearest whole number)
Answer(s): (a) 960; (b) 53%