A person borrowed some money on simple interest. After 4 years, he returned (9/5) of the money to the lender. What was the rate of interest?

R lends some money to S on which S pays ₹17,000 more to R. S lends the same money to T, on which T pays 8.5% more to S. What should be the minimum amount (in ₹) that S must borrow so that he does not incur any loss in the process?

A sum amounts to ₹7,656 in 4 years and to ₹8,120 in 5 years at a certain simple interest rate percent per annum. The rate of interest is:

Varun invested Rs. 60000 on compound interest for 3 years at some rate of interest compounded annually. If the interest obtained by him is Rs. 43680 then what was the rate of interest?

An unknown amount is to be divided in such a way that it gains the same interest after a certain period of time, the interest is on a half-yearly basis and the rate of interest is in the ratio 6 : 21. In what ratio the amount should be divided?

An online shopping portal, introduces two schemes for their customers, during a sale, on a washing machine whose price is Rs. 15000. In scheme 1 they sell the washing machine at 20% discount and in scheme 2 they sell it at a down payment of Rs. 5000 and three installments of Rs. 3000 payable at intervals of a year. Assuming that the shopping company invests its money at compound interest of 10% compounded annually, which offer is more profitable for them and by how much, at the end of three years?

A sum of Rs. 35000 is invested on simple interest calculated quarterly at the rate of 14% per annum and the same sum is invested on compound interest at the rate of 10% per annum compounded annually. Find the difference of interest earned after 3 years.

The sum of rs 240 becomes 8 times in 3 years when interest is compounded annually then find the rate percentage and the simple interest when this amount is given for 5 years at the same rate.

Quantity A :  Sumit invested rupees X at a rate of 15 % per annum on compound interest for 2 years and gets Rs. 5805 as interest. If he invested Rs. (X + 7000) at 20% per annum on another scheme, find compound interest obtained after two years.

Quantity B : Sumit invested Rs. 16000 at simple interest for 2 years at R% per annum and got Rs. 4000 as interest. If he invested total amount in another scheme at (R - 5)%, find compound interest obtained by Sumit after 2 years.

A man starts investing in two banks with the same capital of 3000 rupees. Bank A gave simple interest on his investment and Bank B gave compound interest on his investment at a rate of 10% each.

Quantity l: Interest by Bank A on an investment of 3 years. 

Quantity ll: Interest by Bank B on an investment of 2 years. 

The sum of Rs.768 is invested in compound interest at the rate of 12.5% for two years. After two years the interest that was earned by compound interest is again invested into simple interest for the next two years at the rate of 5% percentage. Find the total interest at the end of 4 years.

Ranjeet invested some money at simple interest of 23% for a certain duration. After the time duration, the final amount Ranjeet received was twice the amount he invested. For what duration of time did Ranjeet invest his money?

Two sums of Rs. 7500 and Rs. 8000 invested for 2 years at a different rate percent of 5% and 10%. Find the difference in Compound Interest of both the investment.

A sum of money becomes 4 times in 1.5 years. find the approximate rate of interest per annum compounded semi-annually.

The difference between the Simple interest and Compound Interest for 2 years is Rs. 16.9 at the rate of 2.5%.

(I) Principal = Rs. 27054

(II) If half of the principal is lent to Amit at the rate of 0.5% for 2 years then, the earned interest will be Rs. 132.5

(III) If 50% of the principal is lent to Sumit at the rate of 5% for 2 years then, the earned Compound interest will be Rs. 1385.8.

If the rate of interest is 20% p.a. then find the compound interest earned on Rs. 2000 in 1 ½ years. If interest is charged half yearly

The rate at which a sum becomes four times of itself in 20 years at S.I. Now, if a amount of Rs 2270 is invested at this rate. What will be the S.I for the last quarter of second year?

John invested Rs. 'X' at simple interest for 2 years at the rate of 17.5% per annum and Rs. (X + 5000) at compound interest for the same period at the rate of 12% per annum. If he received Rs. 640 more on the simple interest scheme, find the amount invested by him at compound interest.

Shyam earns Rs 1397 by investing Rs 7950 in two schemes offering 10% and 8% compound interest annually for 2 years. Find the amount invested in the scheme offering 8% interest.

Anmol is a share market investor. He invests Rs. 64000 in shares of Preliance Industries. In the first month, there was a net increase of 20% in the share price of Preliance industries however in the following month, the prices went down by 10%, the prices fluctuated again and in the 3rd month, the prices went up by 15%. If the amount which Anmol had invested was actually borrowed by him from Prince on a rate of 12.5% at monthly compound interest, find his overall profit/loss in three months. (in Rs.)

Rohan invested equal amount of money in both Compound and Simple interest at the rate of 11%. After 2 years, the difference in interest amount was Rs. 605. What will be the interest on money put on compound interest after 3 years?

Anuj invested Rs.120000 on compound interest at the rate of 20% per annum compounded quarterly. Find the interest obtained by him in a year.

Anurag invested a sum of money on simple interest for 3.5 years at the rate of 18% per annum and the interest is calculated quarterly. If he received Rs. 118175 at the end of investment period then find the sum invested by Anurag.

Some amount is invested on simple interest for 2 years at the rate of 12% per annum. The same amount is invested on simple interest calculated half-yearly for 1.5 years at the rate of 12% per annum. If the total interest earned is Rs. 7770, what is the total amount invested?

A sum of Rs. 80000 invested at a rate of 7% for 3 years on compound interest. Find the difference between the compound interest of the 3rd year and the 2nd year.

Shyam invested Rs. 12,000 on S.I. for 18 months at the rate of 5% quarterly. The amount that he generated as interest was again invested for 3 years at the same rate compounded annually. What is the total interest amount earned by him?

Chris invested Rs. 60,000 at the rate of 5% per annum for 2 years on simple interest. He invested the obtained interest for 3 years compounded annually at the same rate. Find the total interest obtained in 5 years (in Rs.). (approx.)

A sum of money is invested on simple interest applied semi-annually for 2 years at the rate of 14% per annum and the amount received after 2 years is invested on compound interest for 2 years at the rate of 10% per annum. If the compound interest received at the end is Rs. 3225.6 then find the sum invested initially.

Rohit invested a sum of Rs 60000 on compound interest for 2 years at 10%. At the end of 2 years, the interest earned was again invested in compound interest for 2 years at 15%. What is the interest earned on interest by Rohit?

If the sum of money becomes Rs 6000 in 2 years and becomes Rs 7200 in 3 years on compound interest, then find the rate of interest.

At what rate will a sum of Rs. 1000 amounts to Rs. 1102.50 in 2 years at compound interest?

A sum of 7500 rupees invested in compound interest and simple interest at the rate of  4% for 2 years. Find the difference between compound interest and simple interest.

A sum of 2160 rupees becomes 3430 rupees in 3 years if interest compounded annually. Find the value of rate of interest.

Atul invested Rs. 40000 on compound interest at the rate of 12% per annum for 3 years. Find the compound interest earned by him.

The price of the washing machine is Rs 14000. Ram purchase this washing machine by paying a down payment of Rs 2000 and the remaining balance paid in 3 equal installments. If the dealer charges compounded interest at the rate of 12\(\frac{1}{2}\)%. Then find the value of each installment.

A sum of Rs. 44000 is lent on simple interest at the rate of 16% per annum. The interest is calculated quarterly. If the interest received is Rs.12320, then find the time for which the sum was invested.

A lady mortgaged her gold earrings and took Rs 255000 on simple interest at the rate of 8%. If she lends this money on compound interest at the same rate then, find her earnings after three years.

An amount of Rs. 24700 is invested in compound interest as well as in simple interest at the rate of 13%. After 2 years what will be the difference between compound interest and simple interest?

Ram, Laxman, and Bharat are three brothers who lent money to their friends in the ratio 7 : 4 : 5 for one, two, and three years respectively. The total lent money is Rs.40000.

I. If Ram lent money at simple interest at the rate of 12.5% per annum then, the interest earned by him is Rs.2178.5.

II. If Laxman lent money at compound interest at the rate of 5% per annum then, the interest earned by him is Rs.1025.

III. If Bharat lent only 1/25 of his amount on simple interest at the rate of 12.5 then, the earned interest is Rs.62.5.

A sum of Rs. 255000 is invested in simple interest at the rate of 5 percent. Find the amount after 5 years.

Mayank invested a sum of Rs. 35000 on compound interest rate of 8% for 5 years. What would be the interest earned by Mayank between end of 2nd year to end of 3rd year?

The sum of Rs 95400 invested in simple interest at the rate of 5% for 16 months. Now simple interest is invested in the compound interest for two years at the same rate. What is the final amount?

The difference between compound interest and simple interest on a certain sum of money for 2 years at 10% per annum is Rs 420. Find the simple interest at the same rate and for the same time.

2 friends borrow a sum of Rs. 50000 each on the compound interest of 10% per annum for 3 years and 4 years respectively. What is the difference in interest paid by 2 friends?

Mohan borrowed Rs. 12000 from bank at ‘x’% annual rate of compound interest and lent the same amount to Sobhit at ‘x + 7’% rate of simple interest. At the end of 2 years total profit amount gained by Mohan is Rs. 930, then what is the value of ‘x’?

An amount of Rs. 5275 is invested for a time period at a rate of 4% which amounts to Rs. 6330. If a sum of Rs. 5670 is invested for the same time at an interest rate of 7.23% then find the simple interest at the end.

A sum of money amounts to Rs. 2420 and Rs. 2928.2 respectively after adding compound interest for the 2^nd and 4^th year. Find the amount after completion of 1^st year.

A sum of money when invested for 8 years on simple interest doubles itself. 1/3^rd of the amount collected after 8 years is invested again on simple interest at double rate for 3 years. If the amount collected after 3 years is Rs. 21000 then, find the sum invested initially.

A sum of Rs. 5000 gives the amount of Rs. 7250 when invested in a scheme at the rate of x% p.a. simple interest for a period of three years. What will be the amount received when Rs. 8000 is invested at the rate of x% p.a. for a period of one year when compounded half yearly?