Sarah spent $26 on some notebooks, staplers and markers. The number of notebooks she bought was ¹₂ the number of staplers. The number of markers she bought was ³₅ the number of staplers. The ratio of the amount of money she spent on the notebooks, staplers and markers was 3 : 5 : 5. The staplers were sold at 5 for $5. Find the price of 1 notebook.

Amount spent
Notebooks	Staplers	Markers	Total
3 u	5 u	5 u	$26

Total amount that Sarah spent on notebooks, staplers and markers
= 3 u + 5 u + 5 u
= 13 u

13 u = 26

1 u = 26 ÷ 13 = 2

Amount that Sarah spent on staplers
= 5 u
= 5 x 2
= $10

Number of sets of staplers of 5 bought
= 10 ÷ 5
= 2

Number of staplers that Sarah bought
= 2 x 5
= 10

Number of items bought
Notebooks	Staplers	Markers	Total
1x5	2x5
	5x2	3x2
5 p	10 p	6 p	21 p

The number of staplers bought is repeated.  Make the number of staplers bought is the same.  LCM of 2 and 5 is 10.

Number of staplers that Sarah bought = 10 p

10 p = 10

1 p = 10 ÷ 10 = 1

Number of notebooks that Sarah bought
= 5 p
= 5 x 1
= 5

Amount that Sarah spent on notebooks
= 3 u
= 3 x 2
= $6

Price of 1 notebook
= 6 ÷ 5
= $1.20

Answer(s): $1.20