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
= 300 + 180 + 300 + 170 + 300
= 1250
(b)
Number of pupils who read at least three storybooks
= 1250 - 300 - 180 - 300
= 470
Percentage of pupils who read at least three storybooks
=
4701250 x 100%
= 37.6%
≈ 38% (Correct to nearest whole number)
Answer(s): (a) 1250; (b) 38%