Answer:
2 years
Step-by-step explanation:
Simple Interest formula is given as:
I = P × R × T
P = 640
I = 192
r = 15% = 0.15
Hence, to find time we use the formula
T = I/P × R
T = 192/640 × 0.15
T = 192/96
T = 2 years
Therefore, it will take 2 years .
