The bookshop sells 4 different coloured markers. The line graph shows the number of markers sold for each colour in a week.
- What was the difference between the number of gold and yellow markers sold?
- Each green marker cost $0.70 more than each purple marker. The bookshop collected $66 from selling the purple markers. What was the price of 1 green marker?
(a)
Difference between number of gold and yellow markers sold
= 70 - 17
= 53
(b)
Number of purple markers sold = 30
Price of 1 purple marker
= 66 ÷ 30
= $2.20
Price of 1 green marker
= 2.20 + 0.70
= $2.90
Answer(s): (a) 53; (b) $2.90