Definition: Compound interest is calculated as a percentage as a total amount a the end of the previous compounding period.
= Present Value or Original Amount
= Annual Interest Rate as a Decimal
= multiplier
n = number of years of investment
Illustration: What will Rs 5000 invested at 8% p.a compound interest amount to after 2 years ?
Solution : An interest rate of 8% indicates that i = 0.08.
For 2 years , n = 2 and so = Rs 5000 = Rs 5832
To find interest only, we use
Compound interest = -
Illustration: How much interest is earned according to the above example1 .
Solution : interest earned = $ 5832 - $ 5000 = $ 832
now , To Find Compound Interest (CI) when Interest is Compounded Annually:
In such cases where interest is compounded yearly, the interest accrued during the first year is added to the principal and the amount so obtained becomes the principal for the second year. The amount at the end of the second year becomes the principal for the third year, and so on.
Illustration: Find the compound interest on Rs 25000 for 3 years at 6% per annum, compounded annually.
Solution: Principal for the first year = Rs. 25000.
Amount at the end of the first year = 25000 + 1500 = Rs 26500.
Principal for the second year = Rs. 26500.
Amount at the end of the second year = Rs 26500 + 1590 = Rs 28090.
Principal for the third year = Rs 28090.
Amount at the end of the third year = 28090 + 1685.40 = Rs 29775.40.
Therefore, compound interest = 29775.40 - 25000 = Rs 4775.40.
Compound Interest By Formula:
For the above example:
Principal = 25000
Rate= 6%
time= 3 years
Therefore, compound interest = 29775.40 - 25000 = Rs 4775.40.
Rs 1,000 invested at 10% for 5 Years. The compound Interest when compounded annually will be __________________. | |||
Right Option : A | |||
View Explanation |
A factory kept increasing its output by the same percentage every year.find the percentage,if it is known that the output doubled in the last two years: | |||
Right Option : B | |||
View Explanation |
A man borrowed Rs. 3125 for CI and it amounted to Rs. 4500 in 2 years. The rate of CI per annum is : | |||
Right Option : C | |||
View Explanation |
Being a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
My experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
One of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
My experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Abhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
It was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
A marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Abhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
About Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
It has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice