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 black papers sold?
- Each green paper cost $0.50 more than each yellow paper. The bookshop collected $65 from selling the yellow papers. What was the price of 1 green paper?
(a)
Difference between number of purple and black papers sold
= 48 - 28
= 20
(b)
Number of yellow papers sold = 25
Price of 1 yellow paper
= 65 ÷ 25
= $2.60
Price of 1 green paper
= 2.60 + 0.50
= $3.10
Answer(s): (a) 20; (b) $3.10