RBeI
Rajbala Educational Institution Pvt Ltd
SIMPLE INTEREST
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Remenbabu deposits Rs.3, 70,000 in total in three banks, the rates of simple interest per annum in three banks are 4%, 5% and 6% respectively; after 1 yr., the total interests in three banks are equal. Let us calculate the amount he has deposited in each of the three banks.

Fatima Bibi deposits Rs.100 on the first day of every month in a monthly savings scheme. In this way, she has deposited money for one yr. If rate of simple interest is 6% per annum; then let us determine the amount she will get at end of the yr.

My aunti will make a will of Rs.56,000 in such a way in the names of her two sons with the ages 13 yrs and 15 yrs such that, each of them will have equal amount of principal along with interest having the rate of simple interest of 10% per annum at the time of obtaining 18 years of age. Let us determine the amount of money she had allotted for each her sons in her will.

If a loan amount of Rs. 5000 is taken at the rate of simple interest of 5% annum from 1st January to 8th August 2003, then let us write, by calculating, the amount of interest and the amount of principal along with interest.

A Cooperative Society of weavers took a loan at the time of purchasing a power loom from central Cooperative bank in respect to condition, that they would repay then interest at the rate of simple interest of 9% per annum and 15 th part of the principal at every 2 yrs. of interval.

At the time of retirement, Subirbabu got Rs. 6, 00,000 for provident found and gratuity all together at a time. He wants to deposit this money in the Post Office and in the bank so that he would get Rs.34,000 per year. If the rates of simple interest per annum in the post office and bank are 6% and 5% respectively, then let us write by calculating the amount of money deposited by him separately in the Post office and in the bank.

If a principal becomes Rs. 560 in 3 yrs and 600 in 5 yrs. at the same rate of simple interest in percent per annum, let us determine the principal and the rate of simple interest in percent per annum.
REVISION

In one year, if shraboni would got Rs.60 as interest at the rate of simple interest 5% per annum in the bank, then how much amount would she deposited let us calculate and write it.

Ashadebi deposited some in the bank for 4 yrs. at the rate of simple interest of 6% per annum. After that time she got interest Rs. 240 in total. Let us calculate and see the amount Ashadebi deposited in the bank.

Let us write in the blank by calculation.
Principal 
Time 
Rate of simple interest per annum 
Principal with interest 
5yrs. 
3% 
Rs.966 

6yrs. 
6% 
Rs.13,600 

Saheli gave the total amount of interest by taking a loan of Rs.700 for 5 yrs. at the rate of simple interest of 4% per annum which is equal to the amount of total interest if she would take a loan of Rs. 900 for the same time. Let us write by calculating, the rate of simple interest in percent per annum.

Soma aunti deposits Rs.6, 20,000 in such a way I three banks at the rate of simple interest of 5% per annum for 2 yrs., 3 yrs. and 5 yrs. respectively so that the total interests in the 3 banks are equal. Let us calculate the money deposited by Soma aunti in each of the three banks.

By depositing Rs.700 in the bank for a certain period of time at the fixed rate of simple interest per annum, I got Rs.900 as principal along with interest. Let us write, by calculating, the amount to be deposited for which I would get Rs.1350 for the same time and at the same rate.

Rahamatchacha lended Rs.750 for 3 years at the rate of simple interest10% per annum from the rural cooperative bank. Let me write the total interest and principal along with the interest after calculating it.
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