The bar graph shows the number of books Primary 5 pupils read over a week.
- Class 5 _____ and 5 _____ read 220 books in total. Give your answers in letters. (Eg A, B)
- For every 4 books read by the pupils, they can exchange for 1 gift. How many more gifts did Class 5B exchange than Class 5D?
(a)
Number of books that pupils in Class 5C read = 80
Number of books that pupils in Class 5D read = 140
Number of books that pupils in Class 5C and 5D read
= 80 + 140
= 220
(b)
Number of books that pupils in Class 5B read more than pupils read in Class 5D
= 240 - 140
= 100
Number of gifts that pupils in Class 5B exchanged more than pupils in Class 5D
= 100 ÷ 4
= 25
Answer(s): (a) C, D; (b) 25