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 white markers sold?
- Each silver marker cost $0.30 more than each pink marker. The bookshop collected $80 from selling the pink markers. What was the price of 1 silver marker?
(a)
Difference between number of black and white markers sold
= 70 - 53
= 17
(b)
Number of pink markers sold = 50
Price of 1 pink marker
= 80 ÷ 50
= $1.60
Price of 1 silver marker
= 1.60 + 0.30
= $1.90
Answer(s): (a) 17; (b) $1.90