Expert: Lynn Houston - 7/23/2009

Question
Helen spent 1/4 of her weekly wage on rent and 5/6 of the remainder on living expenses.She saved what was left over.Find her weekly wage is she saved £40

Answer
Let x = weekly wage

x - 1/4x - (5/6(x-(1/4x))) = 40
x - 1/4x - (5/6x - 5/24x) = 40
x - 1/4x - 5/6x   5/24x = 40
24/24x - 6/24x - 20/24x   5/24x = 40
3/24x = 40
1/8x = 40
x = 320

she spends 1/4 (80 on rent) and 5/6 of remaining 240 (200) on living expenses, that leaves her 40 pounds to save