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 yellow and blue markers sold?
- Each purple marker cost $0.60 more than each brown marker. The bookshop collected $78 from selling the brown markers. What was the price of 1 purple marker?
(a)
Difference between number of yellow and blue markers sold
= 47 - 18
= 29
(b)
Number of brown markers sold = 20
Price of 1 brown marker
= 78 ÷ 20
= $3.90
Price of 1 purple marker
= 3.90 + 0.60
= $4.50
Answer(s): (a) 29; (b) $4.50