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 + 280 + 220 + 250 + 240
= 1120
(b)
Number of pupils who read at least three storybooks
= 1120 - 130 - 280 - 220
= 490
Percentage of pupils who read at least three storybooks
=
4901120 x 100%
= 43.75%
≈ 44% (Correct to nearest whole number)
Answer(s): (a) 1120; (b) 44%