Tina spent ⁴₁₁ of her money on some foolscaps. She spent ²₇ of the remaining money on some correction tapes and ⁴₅ of what was left on some folders.

1. What fraction of her money was left?
2. Given that the folders cost $16 more than the correction tapes, find the sum of money that Tina had at first.

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

(a)
Fraction of money left after spending on the foolscaps
= 1 - ⁴₁₁
= ⁷₁₁

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

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

Fraction of money that was left = ¹₁₁

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

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

2 u = 16

1 u = 16 ÷ 2 = 8

Amount that Tina had at first
= 11 u
= 11 x 8
= $88

Answer(s): (a) ¹₁₁; (b) $88