Adam buys a perpetuity due of 1,000 per month for 100,000. Calculate the annual effective rate of interest used to calculate the price of this perpetuity.

Manish opens a Recurring Deposit Account with the bank of Rajasthan and deposits ₹ 600 per month for 20 months . Calculate the maturity value of this account, if the bank pays interest at the rate of 10% per annum.

What will Rs 125000 amount to at the rate of 6%, if the interest is calculated after every four months?

Mohit invests रु 8,000 for 3 years at a certain rate of interest, compounded annually. At the end of one year it amounts to रु 9,440. Calculate (i) the rate of interest per annum. (ii) the amount at the end of the second year. (iii) the interest accrued in the third year.

A person invests रु 10,000 for three years at a certain rate of interest compounded annually. At the end of one year this sum amounts to ? रु 11,200. Calculate : (i) the rate of interest per annum. (ii) the amount at the end of the second year.

Consider a small unit of a factory where there are 5 employees : a supervisor and four labourers. The labourers draw a salary of Rs 5,000 per month each while the supervisor gets Rs 15,000 per month. Calculate the mean, median and mode of the salaries of this unit of the factory.

A person invests Rs. 5,000 for two years at a certain rate of interest compound annually. At the end of one year, this sum amounts to Rs. 5,600. Calculate. (i) the rate of interest per annum. (ii) the amount at the end of the second year.

Pramod deposits ₹ 600 per month in a Recurring Deposit Account for 4 years. If the rate of interest is 8% per year, calculate the maturity value of his account.

A recurring deposit account of ₹ 1,200 per month has a maturity value of ₹ 12,440 . If the rate of interest is 8% and the interest is calculated at the end of every month, find the time ( in months ) of this Recurring Deposit Account.

A sum of Rs. 8,000 is invested for 2 years at 10% per annum compound interest. Calculate : interest for the first year.

A sum of Rs. 8,000 is invested for 2 years at 10% per annum compound interest. Calculate : principal for the second year.