Aslamchacha got ₹1,00,00 when he retired from his service. He deposited some of that money in the bank and rest of his money in the post office and got ₹5400 in total per year as interest. If the rates of simple interest per annum in the and in the post office are 5% and 6%, respectively, then us write by calculating, the money he had deposited in the bank and post office.

Amal Roy deposits ₹2000 in the bank and Poshupoti Ghosh deposits ₹2000 in the post office at the same time. After 3 yrs. they get the return amounts ₹2360 and ₹2480 respectively. Let us write by calculating, the ratio of the rate of simple interest in percent per annum in the bank and that of in the post office.

A weaver Cooperative society takes a loan of ₹15,000 at the time of buying a power loom. After 5 yrs. the society has to repay ₹22125 for recovering the loan. Let us determine the rate of simple interest in percent per annum.

Rekhadidi deposited ₹10,000 of her savings in two separate banks at the same time. The rate of simple interest per annum is of 6% in one bank and that of 7% in other bank; after 2 yrs., if she gets ₹1280 in total as interest, then let us writhe by calculating, the money she had deposited separately in each of two banks.

A bank gives 5% simple interest per annum. In the bank, Dipubabu deposits₹ 15,000 at the beginning of the year, but withdraws ₹3000 after 3 months and then again, ater 3 months he deposits ₹8000. Let us determine the amount (Principalalong with interest) Dipubabu will get at the end of the year.