Pat would have to save for 118 months or approximately 9.8 years for her to be able to buy the house that she wants at $95,000. The computation are as follows:
$95,000 X 0.5 (% on 1st down payment) = $47,500
$95,000 - $47,500 = $50,000 (Pat's 1st down payment)
To compute for how long she could save for $50,000:
$50,000 / $425 = 117.64 or 118 months