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 black and brown markers sold?
- Each gold marker cost $0.60 more than each yellow marker. The bookshop collected $78 from selling the yellow markers. What was the price of 1 gold marker?
(a)
Difference between number of black and brown markers sold
= 68 - 44
= 24
(b)
Number of yellow markers sold = 10
Price of 1 yellow marker
= 78 ÷ 10
= $7.80
Price of 1 gold marker
= 7.80 + 0.60
= $8.40
Answer(s): (a) 24; (b) $8.40