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Simple Interest Tips and Tricks for Government Exams

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00:00Quantitative Aptitude
10:26An amount becomes 7 times in 15 years. In how many years will the same amount become 10 times? The rate of interest remains the same for both cases.
13:16A sum becomes Rs. 3000 at the rate of 12% per annum (simple interest). The same sum becomes Rs. 3300 at the rate of 15% per annum (simple interest) in the same duration. Find the sum and the duration.
17:41A man got Rs. 130 less, as simple interest, when he invested Rs. 2000 for 4 years as compared to investing Rs. 2250 for same duration. What is the rate of interest?
20:221/5 part of an amount was given at 3% simple interest, 1/3 part was given at 5% simple interest, 2/5 parts at 9% simple interest and remaining part at 11% simple interest. The total interest received was Rs. 297. How much amount was originally given?
24:21Rs. 20400 was divided in two parts and then invested. One part invested at 6.25% for 8 years yields the same interest as the other part invested at 7% for 5 years. What is the value of smaller part?
26:52If simple interest on a certain sum for 15 months at 7(1/2) % per annum exceeds the simple interest on the same sum for 8 months at 12(1/2)% per annum by Rs. 32.50, then the sum in Rs.
29:32If simple interest for 2 years for a sum is Rs. 600 and compound interest for the same sum for 2 years and same rate of interest is Rs. 645, what will be the rate of interest? EASY
36:47Aman invests Rs. 8000 at some rate of interest. Being simple interest the money doubles in 5 years. Raj sees this and invests Rs. 6250 for 3 years at same rate of interest. How much interest does Raj get?
38:19Aman got a salary of Rs. 8600. The salary was invested by him in two parts. Find the difference between the two parts of his salary, if in first part he got some simple interest at 15% per annum in 4 years, which was same as the second part which he invested at 20% for 3 years?
39:54Ram gets Rs. 2600 for Rs. 2000 in 5 years at some rate of simple interest. Had he invested in other places where rate of simple interest is 3% more than current rate, how much would have Ram got in same time?
45:06Suresh for 2 years invested Rs. 500 in SBI. He also invested Rs. 300 in ICICI for 4 years. At the end he received Rs. 220 from both banks as simple interest. What must have been rate of interest?
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FAQs on Simple Interest Tips and Tricks for Government Exams

1. What is simple interest?
Ans. Simple interest is a method of calculating interest on a loan or investment based on the principal amount, the interest rate, and the time period. It is calculated by multiplying the principal by the interest rate and the time period.
2. How is simple interest different from compound interest?
Ans. Simple interest is calculated only on the principal amount, while compound interest is calculated on both the principal amount and any accumulated interest. In simple interest, the interest remains the same throughout the given time period, whereas in compound interest, the interest is added to the principal and the interest for subsequent periods is calculated on the new total.
3. How can I calculate the simple interest on a loan?
Ans. To calculate the simple interest on a loan, you need to know the principal amount, the interest rate, and the time period. Multiply the principal amount by the interest rate and the time period, and divide the result by 100. The final amount will be the simple interest.
4. Can you provide an example of calculating simple interest?
Ans. Sure! Let's say you have a loan with a principal amount of $1000, an interest rate of 5% per year, and a time period of 3 years. To calculate the simple interest, multiply $1000 by 5% by 3, which equals $150. Therefore, the simple interest on this loan would be $150.
5. Why is simple interest important?
Ans. Simple interest is important because it helps individuals and businesses calculate the cost of borrowing or the return on investment. It allows for easy comparison between different interest rates and time periods, making it a useful tool in financial planning and decision-making.
Video Timeline
Video Timeline
arrow
00:00Quantitative Aptitude
10:26An amount becomes 7 times in 15 years. In how many years will the same amount become 10 times? The rate of interest remains the same for both cases.
13:16A sum becomes Rs. 3000 at the rate of 12% per annum (simple interest). The same sum becomes Rs. 3300 at the rate of 15% per annum (simple interest) in the same duration. Find the sum and the duration.
17:41A man got Rs. 130 less, as simple interest, when he invested Rs. 2000 for 4 years as compared to investing Rs. 2250 for same duration. What is the rate of interest?
20:221/5 part of an amount was given at 3% simple interest, 1/3 part was given at 5% simple interest, 2/5 parts at 9% simple interest and remaining part at 11% simple interest. The total interest received was Rs. 297. How much amount was originally given?
24:21Rs. 20400 was divided in two parts and then invested. One part invested at 6.25% for 8 years yields the same interest as the other part invested at 7% for 5 years. What is the value of smaller part?
26:52If simple interest on a certain sum for 15 months at 7(1/2) % per annum exceeds the simple interest on the same sum for 8 months at 12(1/2)% per annum by Rs. 32.50, then the sum in Rs.
29:32If simple interest for 2 years for a sum is Rs. 600 and compound interest for the same sum for 2 years and same rate of interest is Rs. 645, what will be the rate of interest? EASY
36:47Aman invests Rs. 8000 at some rate of interest. Being simple interest the money doubles in 5 years. Raj sees this and invests Rs. 6250 for 3 years at same rate of interest. How much interest does Raj get?
38:19Aman got a salary of Rs. 8600. The salary was invested by him in two parts. Find the difference between the two parts of his salary, if in first part he got some simple interest at 15% per annum in 4 years, which was same as the second part which he invested at 20% for 3 years?
39:54Ram gets Rs. 2600 for Rs. 2000 in 5 years at some rate of simple interest. Had he invested in other places where rate of simple interest is 3% more than current rate, how much would have Ram got in same time?
45:06Suresh for 2 years invested Rs. 500 in SBI. He also invested Rs. 300 in ICICI for 4 years. At the end he received Rs. 220 from both banks as simple interest. What must have been rate of interest?
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