The bar graph shows the number of books Primary 4 children read over a week.
- Class 4 _____ and 4 _____ read 270 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 4C?
(a)
Number of books that children in Class 4A read = 170
Number of books that children in Class 4C read = 100
Number of books that children in Class 4A and 4C read
= 170 + 100
= 270
(b)
Number of books that children in Class 4B read more than children read in Class 4C
= 220 - 100
= 120
Number of gifts that children in Class 4B exchanged more than children in Class 4C
= 120 ÷ 2
= 60
Answer(s): (a) A, C; (b) 60