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 65. 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
= 7 u - 5 u
= 2 u
Percentage increase in the number of storybooks read from March to April
=
25 x 100%
= 40%
(b)
Total number of storybooks read from March to June
= 4 x 65
= 260
Number of storybooks read from March to May
= 50 + 70 + 80
= 200
Number of storybooks read in June
= 260 - 200
= 60
Answer(s): (a) 40%; (b) 60