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 brown and pink pencils sold?
- Each red pencil cost $0.60 more than each purple pencil. The bookshop collected $69 from selling the purple pencils. What was the price of 1 red pencil?
(a)
Difference between number of brown and pink pencils sold
= 52 - 10
= 42
(b)
Number of purple pencils sold = 30
Price of 1 purple pencil
= 69 ÷ 30
= $2.30
Price of 1 red pencil
= 2.30 + 0.60
= $2.90
Answer(s): (a) 42; (b) $2.90