PSLE The bar graph shows the number of storybooks read by a class from May to August. The number of storybooks read in August is not shown.
- What was the percentage increase in the number of storybooks read from May to June?
- The average number of books read in a month from May to August was 65. How many books did the class read in August?
(a)
One interval = 1 u
Increase in the number of storybooks read from May to June
= 9 u - 4 u
= 5 u
Percentage increase in the number of storybooks read from May to June
=
54 x 100%
= 125%
(b)
Total number of storybooks read from May to August
= 4 x 65
= 260
Number of storybooks read from May to July
= 40 + 90 + 100
= 230
Number of storybooks read in August
= 260 - 230
= 30
Answer(s): (a) 125%; (b) 30