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Formulae Usage On Simple And Compound Interest


We have discussed about Simple And Compound Interest using 2 case studies previously based on concepts understanding. Now we have introduced formulaes which will make your calculation faster and easier :)

To find the Total Amount based on Simple Interest, this is the formuale you can use:
A_n=P(1+\frac{r}{100}n)

An : Total Amount after n years

P: Original Principal Amount

r: Simple Interest Rate

n: Number of Years

To find the Total Amount based on Compound Interest, this is the formuale you can use:
A_n=P(1+\frac{r}{100})^n<br>

An : Total Amount after n years

P: Original Principal Amount

r: Compound Interest Rate

n: Number of Years

Apply these formulaes to the case studies we have discussed, did you get the same answer?

Congrats!Now you have 2 different approaches, the formulae way or the conventional way to solve all Interest questions.

Keep using the strategies learnt so that you get better and better.

Ai Ling Ong

Hi, I'm Ai Ling Ong. I enjoy coaching students who have challenges with understanding and scoring in 'O' Level A-Maths and E-Maths. I develop Math strategies, sometimes ridiculous ideas to help students in understanding abstract concepts the fast and memorable way. I write this blog to share with you the stuff I teach in my class, the common mistakes my students made, the 'way' to think, analyze... If you have found this blog post useful, please share it with your friends. I will really appreciate it! :)

Filed Under: E-Maths Tagged With: compound interest, formulae, simple interest

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Comments

  1. josiah says

    March 28, 2008 at 10:54 pm

    excellent

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