Zoe spent ³₅ of her salary on a television set and ³₅ of the remainder on a blender. If she saved the remaining $144, how much was her salary?
Fraction of the salary spent on the television set = ³₅

Fraction of the salary on the remainder
= 1 - ³₅
= ²₅

Fraction of the remainder on savings
= 1 - ³₅
= ²₅

Television Set	Remainder		Total
3x5	2x5		5x5
	Blender	Savings
	3x2	2x2
15 u	6 u	4 u	25 u

The remainder and the total amount on the blender and the savings are the same. Make the remainder and the total amount on the blender and the savings the same.  LCM of 2 and 5 is 10.

Total salary = 25 u

Amount spent of the television set = 15 u
Amount spent on the blender = 6 u
Amount of savings = 4 u

4 u = 144

1 u = 144 ÷ 4 = 36

Zoe's salary
= 25 u
= 25 x 36
= $900

Answer(s): $900