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 white pencils sold?
- Each silver pencil cost $0.30 more than each yellow pencil. The bookshop collected $76 from selling the yellow pencils. What was the price of 1 silver pencil?
(a)
Difference between number of black and white pencils sold
= 74 - 67
= 7
(b)
Number of yellow pencils sold = 10
Price of 1 yellow pencil
= 76 ÷ 10
= $7.60
Price of 1 silver pencil
= 7.60 + 0.30
= $7.90
Answer(s): (a) 7; (b) $7.90