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Compound Interest Tips and Tricks for Government Exams

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00:00Quantitative Aptitude
11:47What will be the interest earned on sum of Rs. 6400 kept for 6 months at 25% interest rate compounded quarterly?
18:50What compound interest will Rs. 5000 fetch in 3 years 10 months at 30% per annum?
22:50How much money invested at compound interest will yield Rs. 6350.40 at the end of 3 years? For the first year the rate of interest is 5%; for second year it increases to 12% and for third year it decreases to 8%.
25:53An amount becomes 4 times in 6 years. In how many years will it become 64 times if the rate of interest remains unchanged?
26:50Rs. 400 is simple interest for a sum for 4 years at 10% rate of interest per annum. Find the compound interest for the same sum at same rate of interest for same time period?
28:41In 3 years by compound interest, a sum becomes Rs. 900. But in 4 years by compound interest, the same sum becomes Rs. 1000.
36:33rate of 10% per annum. What was its population 4 years ago from
38:34What will be difference in population 3 years ago and 2 years ago of Devon village, whose current population is 100000 and
41:46The difference between simple and compound interest on a certain sum of money for 2 years at 4 percent per annum is Re. 1. The sum of money is?
43:11Sarang invested some money in HDFC at 3% rate of interest. What would be the corresponding simple interest if after 2 years
45:09Find the principal amount invested if the difference between Compound Interest and Simple Interest obtained for 3 years at
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FAQs on Compound Interest Tips and Tricks for Government Exams

1. How does compound interest work?
Ans. Compound interest is calculated on both the initial principal amount and the accumulated interest of previous periods. This means that as time goes on, the interest earned on the principal increases, resulting in a higher total interest earned.
2. What is the formula for calculating compound interest?
Ans. The formula for calculating compound interest is: A = P(1 + r/n)^(nt), where A is the final amount, P is the principal amount, r is the annual interest rate, n is the number of times that interest is compounded per year, and t is the number of years.
3. How does compound interest differ from simple interest?
Ans. Compound interest takes into account the accumulated interest of previous periods, while simple interest only calculates interest based on the original principal amount. This means that compound interest tends to grow at a faster rate over time compared to simple interest.
4. Can compound interest be negative?
Ans. No, compound interest cannot be negative. Compound interest is always calculated as a positive value, as it represents the additional amount earned or owed on an investment or loan.
5. What are some strategies to maximize the benefits of compound interest?
Ans. To maximize the benefits of compound interest, it is recommended to start investing or saving early, as this allows more time for the interest to compound. Additionally, increasing the frequency of compounding, such as opting for quarterly or monthly compounding instead of annual, can also help to maximize the growth of your investment.
Video Timeline
Video Timeline
arrow
00:00Quantitative Aptitude
11:47What will be the interest earned on sum of Rs. 6400 kept for 6 months at 25% interest rate compounded quarterly?
18:50What compound interest will Rs. 5000 fetch in 3 years 10 months at 30% per annum?
22:50How much money invested at compound interest will yield Rs. 6350.40 at the end of 3 years? For the first year the rate of interest is 5%; for second year it increases to 12% and for third year it decreases to 8%.
25:53An amount becomes 4 times in 6 years. In how many years will it become 64 times if the rate of interest remains unchanged?
26:50Rs. 400 is simple interest for a sum for 4 years at 10% rate of interest per annum. Find the compound interest for the same sum at same rate of interest for same time period?
28:41In 3 years by compound interest, a sum becomes Rs. 900. But in 4 years by compound interest, the same sum becomes Rs. 1000.
36:33rate of 10% per annum. What was its population 4 years ago from
38:34What will be difference in population 3 years ago and 2 years ago of Devon village, whose current population is 100000 and
41:46The difference between simple and compound interest on a certain sum of money for 2 years at 4 percent per annum is Re. 1. The sum of money is?
43:11Sarang invested some money in HDFC at 3% rate of interest. What would be the corresponding simple interest if after 2 years
45:09Find the principal amount invested if the difference between Compound Interest and Simple Interest obtained for 3 years at
More
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