The bar graph shows the number of books Primary 3 pupils read over a week.
- Class 3 _____ and 3 _____ read 180 books in total. Give your answers in letters. (Eg A, B)
- For every 5 books read by the pupils, they can exchange for 1 gift. How many more gifts did Class 3B exchange than Class 3D?
(a)
Number of books that pupils in Class 3C read = 90
Number of books that pupils in Class 3D read = 90
Number of books that pupils in Class 3C and 3D read
= 90 + 90
= 180
(b)
Number of books that pupils in Class 3B read more than pupils read in Class 3D
= 220 - 90
= 130
Number of gifts that pupils in Class 3B exchanged more than pupils in Class 3D
= 130 ÷ 5
= 26
Answer(s): (a) C, D; (b) 26