Jen spent $54 on some staplers, markers and pencils. The number of staplers she bought was ¹₂ the number of markers. The number of pencils she bought was ³₄ the number of markers. The ratio of the amount of money she spent on the staplers, markers and pencils was 5 : 6 : 7. The markers were sold at 2 for $9. Find the price of 1 stapler.

Amount spent
Staplers	Markers	Pencils	Total
5 u	6 u	7 u	$54

Total amount that Jen spent on staplers, markers and pencils
= 5 u + 6 u + 7 u
= 18 u

18 u = 54

1 u = 54 ÷ 18 = 3

Amount that Jen spent on markers
= 6 u
= 6 x 3
= $18

Number of sets of markers of 2 bought
= 18 ÷ 9
= 2

Number of markers that Jen bought
= 2 x 2
= 4

Number of items bought
Staplers	Markers	Pencils	Total
1x2	2x2
	4x1	3x1
2 p	4 p	3 p	9 p

The number of markers bought is repeated.  Make the number of markers bought is the same.  LCM of 2 and 4 is 4.

Number of markers that Jen bought = 4 p

4 p = 4

1 p = 4 ÷ 4 = 1

Number of staplers that Jen bought
= 2 p
= 2 x 1
= 2

Amount that Jen spent on staplers
= 5 u
= 5 x 3
= $15

Price of 1 stapler
= 15 ÷ 2
= $7.50

Answer(s): $7.50