The bookshop sells 4 different coloured pencils. The line graph shows the number of pencils sold for each colour in a week.
- What was the difference between the number of black and green pencils sold?
- Each gold pencil cost $0.20 more than each silver pencil. The bookshop collected $85 from selling the silver pencils. What was the price of 1 gold pencil?
(a)
Difference between number of black and green pencils sold
= 77 - 71
= 6
(b)
Number of silver pencils sold = 34
Price of 1 silver pencil
= 85 ÷ 34
= $2.50
Price of 1 gold pencil
= 2.50 + 0.20
= $2.70
Answer(s): (a) 6; (b) $2.70