The bookshop sells 4 different coloured papers. The line graph shows the number of papers sold for each colour in a week.
- What was the difference between the number of purple and brown papers sold?
- Each white paper cost $0.40 more than each yellow paper. The bookshop collected $72 from selling the yellow papers. What was the price of 1 white paper?
(a)
Difference between number of purple and brown papers sold
= 62 - 47
= 15
(b)
Number of yellow papers sold = 48
Price of 1 yellow paper
= 72 ÷ 48
= $1.50
Price of 1 white paper
= 1.50 + 0.40
= $1.90
Answer(s): (a) 15; (b) $1.90