Mr. Richard has a recurring deposit account in a bank for 3 years at 7.5% per annum simple interest. If he gets ₹8,325 as interest at the time of maturity, find:

(i) The monthly deposit,

(ii) The maturity value.

Katrina opened a recurring deposit account with a Nationalised Bank for a period of 2 years, If the bank pays interest at 6% per annum and the monthly installment is ₹1,000 find:

(i) interest earned in 2 years,

(ii) matured value .

Mr. Gupta opened a recurring deposit account in a bank. He deposited ₹2,500 per month for 2 years. At the time of maturity he got ₹67,500. Find:

(i) the total interest earned by Mr. Gupta

(ii) the rate of interest per annum

Mr. Thomas has a 4 years cumulative time deposit account in Corporation Bank and deposits ₹650 per month. If he receives ₹36,296 at the time of maturity, find:

(i) the total interest earned by Mr. Thomas.

(ii) the rate of interest per annum.