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 red and green pencils sold?
- Each yellow pencil cost $0.50 more than each silver pencil. The bookshop collected $72 from selling the silver pencils. What was the price of 1 yellow pencil?
(a)
Difference between number of red and green pencils sold
= 25 - 15
= 10
(b)
Number of silver pencils sold = 30
Price of 1 silver pencil
= 72 ÷ 30
= $2.40
Price of 1 yellow pencil
= 2.40 + 0.50
= $2.90
Answer(s): (a) 10; (b) $2.90