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
= 270 + 120 + 180 + 140 + 250
= 960
(b)
Number of pupils who read at least three storybooks
= 960 - 270 - 120 - 180
= 390
Percentage of pupils who read at least three storybooks
=
390960 x 100%
= 40.625%
≈ 41% (Correct to nearest whole number)
Answer(s): (a) 960; (b) 41%