Winnie spent $119 on some notebooks, pens and staplers. The number of notebooks she bought was ¹₄ the number of pens. The number of staplers she bought was ⁴₅ the number of pens. The ratio of the amount of money she spent on the notebooks, pens and staplers was 4 : 8 : 5. The pens were sold at 5 for $7. Find the price of 1 notebook.

Amount spent
Notebooks	Pens	Staplers	Total
4 u	8 u	5 u	$119

Total amount that Winnie spent on notebooks, pens and staplers
= 4 u + 8 u + 5 u
= 17 u

17 u = 119

1 u = 119 ÷ 17 = 7

Amount that Winnie spent on pens
= 8 u
= 8 x 7
= $56

Number of sets of pens of 5 bought
= 56 ÷ 7
= 8

Number of pens that Winnie bought
= 8 x 5
= 40

Number of items bought
Notebooks	Pens	Staplers	Total
1x5	4x5
	5x4	4x4
5 p	20 p	16 p	41 p

The number of pens bought is repeated.  Make the number of pens bought is the same.  LCM of 4 and 5 is 20.

Number of pens that Winnie bought = 20 p

20 p = 40

1 p = 40 ÷ 20 = 2

Number of notebooks that Winnie bought
= 5 p
= 5 x 2
= 10

Amount that Winnie spent on notebooks
= 4 u
= 4 x 7
= $28

Price of 1 notebook
= 28 ÷ 10
= $2.80

Answer(s): $2.80