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
= 130 + 140 + 230 + 110 + 190
= 800
(b)
Number of pupils who read at least three storybooks
= 800 - 130 - 140 - 230
= 300
Percentage of pupils who read at least three storybooks
=
300800 x 100%
= 37.5%
≈ 38% (Correct to nearest whole number)
Answer(s): (a) 800; (b) 38%