The bar graph shows the number of books Primary 3 students read over a week.
- Class 3 _____ and 3 _____ read 320 books in total. Give your answers in letters. (Eg A, B)
- For every 5 books read by the students, they can exchange for 1 gift. How many more gifts did Class 3B exchange than Class 3C?
(a)
Number of books that students in Class 3A read = 230
Number of books that students in Class 3C read = 90
Number of books that students in Class 3A and 3C read
= 230 + 90
= 320
(b)
Number of books that students in Class 3B read more than students read in Class 3C
= 180 - 90
= 90
Number of gifts that students in Class 3B exchanged more than students in Class 3C
= 90 ÷ 5
= 18
Answer(s): (a) A, C; (b) 18