Question 934491
she spends 1/3 on cloths 
she saves 3/8 * 2/3 = 6/24 = 1/4 
she spends 1 - (1/3 + 1/4) = 1 - 7/12 = 5/12 on food
she spends (1/3 + 5/12) * 540 = 9/12 * 540 = $405