PSLE The bar graph shows the number of storybooks read by a class from March to June. The number of storybooks read in June is not shown.
- What was the percentage increase in the number of storybooks read from March to April?
- The average number of books read in a month from March to June was 50. How many books did the class read in June?
(a)
One interval = 1 u
Increase in the number of storybooks read from March to April
= 5 u - 4 u
= 1 u
Percentage increase in the number of storybooks read from March to April
=
14 x 100%
= 25%
(b)
Total number of storybooks read from March to June
= 4 x 50
= 200
Number of storybooks read from March to May
= 40 + 50 + 50
= 140
Number of storybooks read in June
= 200 - 140
= 60
Answer(s): (a) 25%; (b) 60