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 pink markers sold?
- Each black marker cost $0.60 more than each yellow marker. The bookshop collected $77 from selling the yellow markers. What was the price of 1 black marker?
(a)
Difference between number of gold and pink markers sold
= 43 - 32
= 11
(b)
Number of yellow markers sold = 35
Price of 1 yellow marker
= 77 ÷ 35
= $2.20
Price of 1 black marker
= 2.20 + 0.60
= $2.80
Answer(s): (a) 11; (b) $2.80