Principal amount (P) = Rs 8000
Time period (T) = 2 years
Rate of interest (R) = 4% per 2 year = 2% per annum
Interest = ((8000×2×2)/100)
= 80 x 2 x 2 = Rs 320
Total amount paid after 2 years = Principal amount + Interest = Rs 8000 + Rs 320 = Rs 8320