南航工程经济学双语第4章习题答案.xls

Reference AnswerExercises Ch4 2015 Ex.4-1 nNet Cash Flow 0($1,000,000) MARR14% 1$2,500,000.00 2-$1,540,000.00 answer i=PW (a)0 ($40,000.00) 1% ($34,408.39) 2% ($29,219.53) 3% ($24,413.23) 4% ($19,970.41) 5% ($15,873.02) 6% ($12,103.95) 7%($8,647.04) 8%($5,486.97) 9%($2,609.21) 10%$0.00 11%$2,353.71 12%$4,464.29 13%$6,343.49 14%$8,002.46 15%$9,451.80 16%$10,701.55 17%$11,761.27 18%$12,640.05 19%$13,346.52 20%$13,888.89 21%$14,274.98 22%$14,512.23 23%$14,607.71 24%$14,568.16 25%$14,400.00 26%$14,109.35 27%$13,702.03 28%$13,183.59 29%$12,559.34 30%$11,834.32 31%$11,013.34 32%$10,101.01 33%$9,101.70 34%$8,019.60 35%$6,858.71 36%$5,622.84 ($50,000.00) ($40,000.00) ($30,000.00) ($20,000.00) ($10,000.00) $0.00 $10,000.00 $20,000.00 00.1 PW 37%$4,315.63 38%$2,940.56 39%$1,500.96 40%$0.00 41%($1,559.28) 42%($3,173.97) 43%($4,841.31) 44%($6,558.64) 45%($8,323.42) 46% ($10,133.23) 47% ($11,985.75) 48% ($13,878.74) 49% ($15,810.10) 50% ($17,777.78) (b) i1*=10% i2*=40% (c )Non-simple investment NPW8,002.5 0 Accept the project Ex.2 R13500000 C%40% g% IN01500000 S-L2000000 S-E IN17000000 S-B1400000 nInvest. & Salva.revenuecostnet cash flow 0($1,500,000)00($1,500,000) 1-700000000($7,000,000) 23500000-14000002100000 33675000-14700002205000 43858750-15435002315250 54051688-16206752431013 64254272-17017092552563 74466985-17867942680191 84690335-18761342814201 94924851-19699412954911 105171094-20684383102656 115429649-21718603257789 125429649-21718603257789 135429649-21718603257789 1439000005429649-21718607157789 i*=26.9% i*MARR=15% Accept Ex.3 Model AModel B MARR=12% Initial cost $7,000 $10,000 Annual savings $700 $1,000 Annual maintenan ce $100 $50 Expected life 20 years20 years Salvage value $400 $500 year Model AModel Bincremental(B-A) 0($7,000)($10,000)($3,000) 1600950$350 2600950$350 3600950$350 4600950$350 5600950$350 6600950$350 7600950$350 8600950$350 9600950$350 10600950$350 11600950$350 12600950$350 13600950$350 14600950$350 15600950$350 16600950$350 17600950$350 18600950$350 19600950$350 20$1,000$1,450$450 i*=6.01%7.24%9.97% i*(MB-MA)MARR Stockless Supply System is m