Rahamatchacha takes a loan amount of ₹2,40,000 from a bank for constructing a building at the rate of simple interest of 12% per annum. After 1 yr. Of taking the loan he rents the house at the rate of ₹5200 per month. Let us determine the number of yrs. he would take to repay his loan along with interest from the income of the houserent.

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.

Rothinbabu deposits the money for each of his two daughters in such a way that when the ages of each of his daughters will be 18yrs. each one will get ₹1,20,000. The rate of simple interest per annum in the bank is 10% and the present ages of his daughters are 13yrs. and 8 yrs. respectively. Let us determine the money, he had deposited separately inthe bank for each of his daughters.

If the interest of ₹p at the rate of simple interest of r% per annum in t years is I,then