Eliyavan
(Assistant Professor)
(31 Points)
Replied 12 May 2015
Well, you have stated the Principal Amount, Interest Rate, Duration in years, but generally the duration of 20 years are spresd over (20*12=) 240 months. I assume you ask for an EMI for 240 months. The standard formula is:
EMI = {P [r / (1- (1+r)^(-n)]}
For your First Question, P = 3200000; r = (10.95/100 X 1/12) (this gives Interest Rate Per Month)and n = 240 months. Use a scientific calculator to solve the above formula and the EMI answer is Rs.32,921.216 per month.
The answers for Second and Third Questions are time-consuming job, because as the EMI remains constant, the amount of Principal Amount you pay through the EMI slowly increases month after month; on the same way the Interest Amount you pay decreases month after month. Therefore you must work 240 times to know about the Principal and Interest Amount of each month's EMI.
However, suppose you have properly paid the EMI for 3 years (or 36 moths), you can easily find out the remaining Unpaid Principal Amount by slightly manipulating the above EMI formula.
If you are interested to know, please reply and I will let you learn.
With regards,
Eliyavan