Respuesta :

Period For Interest = 9 months
Period taken = 54 months
Investment =   2000

Quarters for payment = 54 ÷ 9
          =6 periods 

2000×2 = 4000
4000×2 = 8000
8000×2 = 16000
16000×2 = 32000
32000×2 = 64000
64000×2 = 128000

   Answer = 128000