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 white and red markers sold?
- Each gold marker cost $0.70 more than each black marker. The bookshop collected $72 from selling the black markers. What was the price of 1 gold marker?
(a)
Difference between number of white and red markers sold
= 72 - 44
= 28
(b)
Number of black markers sold = 30
Price of 1 black marker
= 72 ÷ 30
= $2.40
Price of 1 gold marker
= 2.40 + 0.70
= $3.10
Answer(s): (a) 28; (b) $3.10