The bar graph shows the number of books Primary 4 students read over a week.
- Class 4 _____ and 4 _____ read 240 books in total. Give your answers in letters. (Eg A, B)
- For every 2 books read by the students, they can exchange for 1 gift. How many more gifts did Class 4B exchange than Class 4D?
(a)
Number of books that students in Class 4C read = 100
Number of books that students in Class 4D read = 140
Number of books that students in Class 4C and 4D read
= 100 + 140
= 240
(b)
Number of books that students in Class 4B read more than students read in Class 4D
= 270 - 140
= 130
Number of gifts that students in Class 4B exchanged more than students in Class 4D
= 130 ÷ 2
= 65
Answer(s): (a) C, D; (b) 65