Rekha opened a recurring deposit account for 20 months. The rate of interest is 9% per annum and Rekha receives ₹441 as interest at the time of maturity. Find the amount Rekha deposited each month.

Mohan has a recurring deposit account in a bank for 2 years at 6% p.a. simple interest. If he gets ₹1200 as interest at the time of maturity, find

(i) the monthly installment.
(ii) the amount of maturity.

If Vijay opened a recurring deposit account in a bank and deposited ₹800 per month for 1½ years, then the total money deposited in the account is

1. ₹11400
2. ₹14400
3. ₹13680
4. none of these