Which of the following expression is correct ?
Maturity value = p×n+P×n2×12×r100
Maturity value = p×n+P×n(n+1)2×12×r100
Maturity value = p+P×n(n+1)2×12×r100
The correct expression is Maturity value = p×n+P×n(n+1)2×12×r100
For principal P, rate of interest R, and time period N (in years), what is the simple interest?