The bar graph shows the number of books Primary 4 children read over a week.
- Class 4 _____ and 4 _____ read 200 books in total. Give your answers in letters. (Eg A, B)
- For every 2 books read by the children, they can exchange for 1 gift. How many more gifts did Class 4B exchange than Class 4D?
(a)
Number of books that children in Class 4C read = 90
Number of books that children in Class 4D read = 110
Number of books that children in Class 4C and 4D read
= 90 + 110
= 200
(b)
Number of books that children in Class 4B read more than children read in Class 4D
= 190 - 110
= 80
Number of gifts that children in Class 4B exchanged more than children in Class 4D
= 80 ÷ 2
= 40
Answer(s): (a) C, D; (b) 40