Question

Andaikan suatu investasi Rp.100,000,000 lipat dua setiap 10 tahun. Berapa nilai investasi ini setelah :
a. 30 tahun
b. 50 tahun

Answer 1

A.30 thun=100,000,000 x2=200,000,000x2=400,000,000x2=800,000,000+modal(100,000,000)=Rp.900,000,000
b.50 thun=100,000,000x2=200,000,000x2=400,000,000x2=800,000,000x2=1.600,000,000x2=3.200,000,000+modal(100,000,000)=Rp.3.300,000,000

Answer 2

A = 100,000,000
r=2
un=a.r^n
a. u3=100,000,000×2^3= 100,000,000×8= 800,000,000
b.u5=100,000,000×2^5= 100,000,000×32=3,200,000,000