Practice Simple and compound interest Questions and Answers

• Raghav placed an amount of Rs. 'x' in an account with an annual compound interest rate of R%. After 3 years, the compounded annual amount is Rs.12167. Addi...
• If the difference between the simple interest and compound interest, compounded annually, received on a principal amount of Rs. 25000 at an interest rate o...
• 'P' allocated different portions of his savings, totaling Rs. 100,000, to three banks. The first portion was invested in Axis Bank at a simple interest rat...
• At a simple interest rate of 20% per year for three years, 'P' invested Rs. 'p + 250', and for two years, Rs. 'p + 500' at a simple interest rate of 30% pe...
• How long will a sum of money take to double, if it is invested in 9% p.a. simple interest?(approx).
• X invested Rs. 3600 at an annual simple interest rate of (a + 10)% and Rs. 2400 at an annual simple interest rate of a%. After 3 years, the total interest ...
• R' invested an amount of Rs. 'r' for a duration of 4 years, while 'S' invested Rs. 6000 for 18 months. The ratio of their respective profits is 16:9. Deter...
• The total investment by P and Q is Rs. 7500. P invests his amount at a simple interest rate of 30% per annum for 4 years, while Q invests his amount at a c...
• A sum of money, invested for 8 years on 5% per annum simple interest, amounted to ₹287 on maturity. What was the sun invested in?
• A sum of money, invested for 8 years on 5% per annum simple interest, amounted to ₹287 on maturity. What was the sun invested in?
• "R" put Rs.(r + 5000) into a SIP that offered 12% annual simple interest for four years. He also made a three-year investment of Rs. (r - 5000) in the same...
• Anita and Rohan each invested a sum of ₹12,000 for 2.5 years at 20% compound interest per annum. However, while for Anita the interest was compounded ann...
• Rahul placed Rs. 40,000 between two investment options, ‘E’ and ‘F’, for 6 years and 3 years, respectively. Option ‘E’ accrues simple interest ...
• Soham invested Rs. 32,000 partly in schemes ‘I’ and ‘J’ for 4 years and 6 years, respectively. Scheme ‘I’ offers simple interest at 18% per ann...
• Mr. Karan invested his funds in 3 different projects 'P', 'Q', and 'R' in the ratio 7:6:5, respectively. The rates of interest offered by projects 'P', 'Q'...
• Ms. Riya allocated her savings into three different funds X, Y, and Z in the ratio 8:7:6. The interest rates for these funds are w% p.a., (w − 4)% p.a., ...
• A sum of money invested at 18% per annum simple interest for 3 years earns Rs. 540 more interest than it does when invested at 15% per annum compound inter...
• Rama and Dipak each invested a sum of ₹8000 for a period of two years at 15% compound interest per annum. However, while for Rama the interest was compou...
• Raj invested Rs. ‘5y’ in scheme ‘C’ offering simple interest of 20% p.a. and reinvested the interest earned from scheme ‘C’ at the end of 3 yea...
• If the difference between the simple interest and compound interest, compounded annually, on Rs. 40,000 at (r + 4)% rate of interest for 2 years is Rs. 256...
• By investing Rs. 6,000 for 'a' years at an annual compound interest rate of 15%, the interest gained amounted to Rs. 1,935. Determine the simple interest e...
• Ashish invests an amount of Rs. 'A' into two different SIPs, named 'P' and 'Q', for durations of 3 years and 2 years respectively. The first SIP 'P' yields...
• A total amount of Rs.39,800 is split among three siblings named 'Ajay', 'Bijay', and 'Chetna'. 'Ajay' receives an amount that is in the ratio of 7:8 compar...
• Ankush puts Rs. 8,000 into two separate Systematic Investment Plans (SIPs) at a compound interest rate of 20% per annum. In SIP 'X', the investment is for ...
• A woman invests Rs. 10,000 in a bank offering 10% p.a. compound interest for the first 3 years and then 15% p.a. simple interest for the rest of the period...
• A sum of Rs. 30,000 is invested in SIP 'C' which offers 12% p.a. simple interest for 3 years. The interest received from SIP 'C' is invested in SIP 'D' whi...
• A sum of Rs. 40,000 is invested in SIP 'E' which offers 8% p.a. simple interest for 6 years. The interest received from SIP 'E' is invested in SIP 'F' whic...
• A sum of Rs. 15,000 is invested in SIP 'J' which offers 6% p.a. simple interest for 8 years. The interest received from SIP 'J' is invested in SIP 'K' whic...
• An amount of Rs. 2400 is placed in SIP 'P' at a 25% per annum simple interest rate for 8 years, and Rs. 2500 is invested in SIP 'Q' with a 20% annual compo...
• 'X' invested Rs. 18,000, splitting the amount between two SIPs: 'P' offering 8% per annum simple interest and 'Q' offering 10% per annum compound interest,...
• Amit placed an amount 'p' in Fund 'X' that offers a 10% compound interest per annum and also invested Rs. (p + 1000) in Fund 'Y' that offers a 15% simple i...
• Rina lent Rs. 18,000 to her brother at a compound interest rate of 'y%' per annum, compounded annually. After one year, her brother paid her Rs. 19,440 to ...
• Priya lent Rs. 10,000 to her colleague at a compound interest rate of 'a%' per annum, compounded annually. A year later, the colleague paid back Rs. 10,800...
• Kiran lent Rs. 40,000 to a friend at a compound interest rate of 'b%' per annum, compounded annually. After one year, the friend returned Rs. 44,800. If Ki...
• A woman invested Rs. 'x + 500' at 8% per annum simple interest and received Rs.360 as interest after 3 years. Calculate the interest she would earn if she ...
• 'P' invests a certain amount at an annual compound interest rate of 15% for two years, earning Rs. 3870 in interest. He then reinvests the total sum she re...
• At the rate of any compound interest rate, it gets tripled in 4 years, in how many years it will become 729 times its own?
• The difference between earned interest on the same amount invested for 2 years on compound interest and simple interest is Rs. 75. If interest rates are 5%...
• Ankit invested a total of Rs. 63,000 between two SIPs: 'P', offering 10% compound interest compounded annually, and 'Q', offering 12% simple interest per a...
• An amount doubles itself on simple interest in 3 years. What is the percent per annum rate of interest?