CCommunity
Let P = principle, N = time and R = rate percent per annum
Then,
Simple interest = (P × N × R)/100
Given,
P = 1800, R = 8% and N = 3
Simple interest =
= (1800 × 8 × 3)/100
= 432
∴ Simple interest is Rs.432 on a principal of Rs. 1800 at the rate of 8% per annum for 3 years.