Answer 1.
hey we could find out by the below mentioned formula also:
The interest on recurring deposit may be calculated as :
Let the amount deposited per month =Rs 1000/
Cumulative sum of the amount for 12 months=Rs.12000/
Rate of interest = d
time = 12 months
1000*d*13
recurring interest = ...
2400
or the general formula
(n+1 ) * Amount / month * %rate
= ... 2400
5 years ago  By Vikram
Answer 2.
Hi, it's really simple to calculate the interest rate of recurring deposit. I just give you an example which would help you to understand more clearly:
Time=2 yrs=24 months
[abbreviations used=
MI=monthly income,
MA=matuarity amount
R=rate
p=premium]
1st p for Rs 10000 for 24 months=10000 x24 for 1 month
2nd p for Rs 10000 for 23 months=10000 x 23 for 1 month







Last premium for 10000 for 1 month=10000 x 1
_______
total=10000(24+23+_ _ +1)
=10000 x 24(24 +1)/2
=10000x 24x25/2
=3000000
interest=3000000 x 1/12 x 12/100
=30000
MA=(10000 x 24) + 30000
=270000
formula used=n(n+1)/2.............where n is the no of months.
5 years ago  By Parveen Rao