In: Economics
Simple interest formula:
I = P * r * t
I is interest
P is Principal
r is rate of interest per annum
t is number of years
P = P2000
r = 12% = 0.12
t = 105 days = (105 / 365) years
I = P2000 * (105 / 365) * 0.12 = P25,200 / 365
= P69.04
Simple interest will be P69.04 at the end of 105 days.