Simple Interest Questions

• Simple Interest — What equal annual payment will discharge a debt of ₹ 1696 in 4 years at 4% per annum simple interest?
• Simple Interest — Harsha deposits ₹ 20,000 at 13% per annum simple interest (interest reckoned half-yearly but still simple). What total amount will he receive after 42 months (3.5 years)?
• Simple Interest — A sum amounts to ₹ 1350 in 5 years and to ₹ 1620 in 8 years at the same simple interest rate. Find the principal (original sum).
• Simple Interest — ₹ 6000 becomes ₹ 8000 in 4 years at simple interest. In how many years at the same rate will ₹ 525 become ₹ 700?
• Simple Interest — A principal amounts to ₹ 944 in 3 years and ₹ 1040 in 5 years at the same simple interest rate. Find the principal.
• Simple Interest — ₹ 1550 is lent partly at 5% and partly at 8% per annum (simple). Over 4 years, the total interest received is ₹ 400. Find the ratio of the amounts lent at 5% to 8%.
• Simple Interest — Neeta borrows at tiered simple interest: 6% p.a. for the first 3 years, 9% p.a. for the next 5 years, and 13% p.a. for the period beyond 8 years. If the total interest paid in 11 years is ₹ 8160, find the principal borrowed.
• Simple Interest — Reena has ₹ 10,000. She lends ₹ x to Akshay for 2 years at 15% p.a. and the rest to Brijesh for 2 years at 18% p.a. After 2 years, Akshay’s interest exceeds Brijesh’s by ₹ 360. How much did Reena lend to Brijesh?
• Simple Interest — Mr. Pawan invests ₹ 2,42,000 at 4% p.a. for 6 years (simple). He then invests the accumulated amount (principal + interest) for another 4 years at the same rate, again under simple interest. Find the simple interest earned in the last 4 years.
• Simple Interest — ₹ 12,000 is placed at 10% p.a. simple interest. Because the depositor withdraws after 3 years (instead of keeping it for 5 years at 10%), the bank pays a lower simple-interest rate for the 3-year period. If his interest is ₹ 3,320 less than what he would have received at 5 years and 10%, find the rate actually allowed for the 3 years.
• Simple Interest — Ajay borrows at 5% p.a. simple interest and repays ₹ 8,800 after 2 years, clearing the loan. Find the interest paid by Ajay.
• The difference between simple interest and compound interest, compounded annually, on a certain sum of money for 2 years at the rate of 4% per annum is Rs 1. What is the principal (sum of money in rupees)?
• Simple interest on a certain sum of money for 3 years at 8% per annum is equal to half of the compound interest on Rs. 16,000 for 2 years at 10% per annum. What is the principal sum that was placed on simple interest?
• The difference between simple interest and compound interest, compounded annually, on a certain sum of money for 2 years at 16% per annum is Rs. 320. What is the value of the principal (sum invested) in rupees?
• At what annual rate of compound interest, compounded annually, will a sum of Rs. 1,200 become Rs. 1,348.32 in 2 years?
• Simple interest on a certain sum of money for 3 years at 8% per annum is equal to half of the compound interest on Rs. 16,000 for 2 years at 10% per annum, compounded annually. What is the principal placed on simple interest?
• The difference between the simple interest and the compound interest (compounded annually) on a certain sum of money at 12% per annum for 2 years is Rs. 72. What is the value of the original principal sum (in rupees)?
• The difference between simple interest and compound interest, both calculated annually on the same sum of money for 2 years at 4% per annum, is Rs. 1. What is the principal sum?
• At what rate percent per annum will a sum of money double in 8 years.
• A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is: