Goutam took a loan of some money from a Cooperative bank for opening a poultry farm atthe rate of simple interest of 12% per annum. Every month he has to repay ₹378 as interest. Let us determine the loan amount taken by him.

Utplalbabu took a loan ₹3200 for 2 yrs. From a Cooperative bank for the cultivation of his land at the rate of simple interest of 6% per annum. Let us write by calculating, the amount he has to repay after 2yrs.

Sovadebi deposited some amount of money in a bank at the rate of simple interest of 5.25% per annum. After 2yrs. She has got ₹840 as interest. Let us write by calculating, the money she has deposited in the bank.

Let us write by calculating, the number of yrs for which an amount becomes twice of its principal having the rate of simple interest of 6% per annum.

Mannan Miyan observed, after 6 years of taking a loan of some money, that the interest to be paid had become th of its principal. Let us determine the rate of simple interest in percent per annum.