Jawab Soal :
1. NPW = - 120JT - 10JT (P/A,12%,8) + 30JT (P/A,12%,8) +
50JT (P/F,12%,8) - 15JT = -120JT - 10JT(4.968) + 30JT (4.968) + 50JT (0.4) -
15JT = - 15.64JT
Tidak layak karena NPW < 0
2. NPW = -50JT + 10JT (P/F,8%,8) + 15JT (P/A,8%,8) - ( 5JT + 0.3JT )(P/A,8%,8) = -50JT + 10JT(0.54) + 15JT(5.75) - 5.3JT(17.5)
Layak, NPW > 0
3. NPV = -400JT - 25JT(P/A,10%,10) + 100JT (P/F,10%,10) +
80JT (P/A,10%,2) + 80JT(P/A,20%,10%,8) = -400JT - 25JT(6.14) + 100JT(0.38) +
80JT(1.74) + 80JT(10.1) = 374.24JT
Layak, NPV > 0
4. AW =R -E -CR
= { 300JT (P/G,16,66%,10%,6) + 600JT(P/A10%,6) -
23JT(P/G,10%,6)} - {50JT(P/A,20%,10%,8) + 130JT(P/A,10%,4) + 150JT(P/F,10%,1)}
- 2M = { 300JT (6.35) + 600JT(4.35) - 23JT(9.68)} - {50JT (10.1) + 130JT(3.17)
+ 150JT(0.19)} - 2M = 1.2194M
AW >= 0, Layak
5. RoR = [{ (267x72) - 14500 } / 14500 ] x 100% = 32.58%
sumber: http://dwiagussetia.blogspot.com/2015/02/tugas-ekonomi-teknik-part-1.html
