Edward opened a Recurring deposit account in a bank. He deposited Rs 300 per month for 2 years. At the time of maturity he received Rs 7725. What was the rate of interest?
(i) Puneet has a Recurring Deposit Account in the Bank of Baroda and deposits Rs 140 per month for 4 years. If he gets Rs 8,092 on maturity, find the rate of interest given by the bank.
(ii) David opened a Recurring Deposit Account in a bank and deposited Rs 300 per month for two years. If he received Rs 7,725 at the time of maturity, find the rate of interest per annum.