EXHIBIT 12 COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES For the Twelve Months ended October 31, ----------------------------------------------------- 2000 2001 2002 2003 2004 ----------------------------------------------------- Earnings: Income before income taxes $232,766 $339,712 $347,318 $411,153 $647,432 Interest expense 46,816 59,038 65,344 74,086 94,324 Rent expense 639 852 930 1,150 1,474 Amortization 635 897 1,037 2,689 1,085 ----------------------------------------------------- $280,856 $400,499 $414,629 489,078 744,315 ===================================================== Fixed charges: Homebuilding Interest incurred $60,275 $79,245 $90,331 $104,763 $113,452 Rent expense 639 852 930 1,150 1,474 Amortization 635 897 1,037 2,689 1,085 ----------------------------------------------------- $61,549 $80,994 $92,298 $108,602 $116,011 ===================================================== Ratio 4.56 4.94 4.49 4.50 6.42