1.What is the principal amount if the difference between compound interest and simple interest on it for 3 years at an annual rate of 6 2/3% is Rs. 184?
2.If the difference between simple interest and compound interest on Rs. 5000 for 2 years is Rs. 72, what is the annual interest rate?
3.What is the minimum number of full years required for an amount invested at 25% compound interest to exceed twice its original value?
4.A property's value declines annually by 6.25% of its value at the start of each year. If its worth after 3 years is Rs. 21,093, what was the property's value at the beginning of the first year?
5.What is the principal amount if the compound interest at 5% per annum results in a total of Rs.441 after 2 years?
6.A principal amount invested at compound interest grows to Rs. 2420 after 2 years and Rs. 2662 after 3 years. What is the annual interest rate?
7.What is the ratio of simple interest to compound interest for two identical sums invested at an 8% annual interest rate for 3 years in SBP?
8.If the difference between compound interest and simple interest on Rs. 15,000 over 2 years is Rs. 96, what is the annual rate of interest?
9.What is the difference between the simple interest and compound interest on Rs. 1200 for one year at an annual rate of 10%, compounded semi-annually?
10.A principal amount yields Rs. 50 as simple interest over 2 years at an annual rate of 5%. What will be the compound interest earned on the same principal, rate, and time period?
11.The simple interest on a certain principal for 3 years at an annual rate of 8% is equal to half the compound interest earned on Rs. 4000 over 2 years at 10% per annum. What is the principal amount on which simple interest is calculated?
12.If the difference between compound interest and simple interest on Rs 5000 for 2 years at the same annual rate is Rs 72, what is the rate of interest per year?
13.What annual compound interest rate will turn Rs 20,000 into Rs 24,200 in 2 years?
14.What is the effective annual interest rate for a nominal rate of 6% per year compounded semiannually?
15.What is the principal amount if the difference between the compound interest (compounded yearly) and simple interest on it for 2 years at an annual rate of 10% is Rs 65?
16.A man invests Rs 6000 in a bank at a simple interest rate of 5% per annum. Another man invests Rs 5000 at an 8% per annum compound interest rate. What is the difference between the interest amounts earned by them after 2 years?
17.A money lender borrows a sum at an annual simple interest rate of 4%, paying the interest at the year's end. He then lends this amount at a 6% annual compound interest rate, compounded semi-annually, and receives the interest after one year. If his profit at the end of the year is Rs 104.50, what is the principal amount he initially borrowed?
18.What is the compound interest on Rs 10,000 over 3 years if the interest rates are 4% for the first year, 5% for the second year, and 6% for the third year?
19.If a principal amount doubles in 5 years at compound interest, how many years will it take for the amount to become eight times the original at the same interest rate?
20.The difference between compound interest and simple interest on a principal amount over 2 years at an annual rate of 8% is Rs 786. What is the principal amount?