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 silver and black pencils sold?
- Each pink pencil cost $0.20 more than each yellow pencil. The bookshop collected $75 from selling the yellow pencils. What was the price of 1 pink pencil?
(a)
Difference between number of silver and black pencils sold
= 30 - 22
= 8
(b)
Number of yellow pencils sold = 30
Price of 1 yellow pencil
= 75 ÷ 30
= $2.50
Price of 1 pink pencil
= 2.50 + 0.20
= $2.70
Answer(s): (a) 8; (b) $2.70