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 white and yellow papers sold?
- Each blue paper cost $0.10 more than each grey paper. The bookshop collected $96 from selling the grey papers. What was the price of 1 blue paper?
(a)
Difference between number of white and yellow papers sold
= 80 - 54
= 26
(b)
Number of grey papers sold = 64
Price of 1 grey paper
= 96 ÷ 64
= $1.50
Price of 1 blue paper
= 1.50 + 0.10
= $1.60
Answer(s): (a) 26; (b) $1.60