Tiffany spent ³₁₀ of her money on some punchers. She spent ²₇ of the remaining money on some folders and ⁴₅ of what was left on some correction tapes.

1. What fraction of her money was left?
2. Given that the correction tapes cost $4 more than the folders, find the sum of money that Tiffany had at first.

Punchers	Remaining money
3	7
	Folders	Left
	2	5
		Correction Tapes	Rest
3 u	2 u	4 u	1 u

(a)
Fraction of money left after spending on the punchers
= 1 - ³₁₀
= ⁷₁₀

Fraction of remaining money after spending on the folders
= 1 - ²₇
= ⁵₇

Fraction of what was left after spending on the correction tapes
= 1 - ⁴₅
= ¹₅

Fraction of money that was left = ¹₁₀

(b)
Amount that Tiffany spent on the folders = 2 u
Amount that Tiffany spent on the correction tapes = 4 u

Amount that the correction tapes cost more than the folders
= 4 u - 2 u
= 2 u

2 u = 4

1 u = 4 ÷ 2 = 2

Amount that Tiffany had at first
= 10 u
= 10 x 2
= $20

Answer(s): (a) ¹₁₀; (b) $20