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 gold markers sold?
- Each blue marker cost $0.20 more than each green marker. The bookshop collected $90 from selling the green markers. What was the price of 1 blue marker?
(a)
Difference between number of yellow and gold markers sold
= 52 - 23
= 29
(b)
Number of green markers sold = 60
Price of 1 green marker
= 90 ÷ 60
= $1.50
Price of 1 blue marker
= 1.50 + 0.20
= $1.70
Answer(s): (a) 29; (b) $1.70