Principal amount P = $3000
Time interval t = 30 years
Number of installments n = 30×12 = 360
Apr (r) = 9% = 0.09(decimal value
The mathematical formula to calculate EMI is: EMI = P × r × (1 + r)^n/((1 + r)^n - 1)
where P= Loan amount, r= interest rate, n=tenure in number of months
Monthly payment = 3000×0.09×(1+0.09)^360/{(1+0.09)^360 -1}
Emi = $270