Multiply by the interest rate.
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For the second (and subsequent) periods, if the interest is to be calculated for the original sum PLUS the interest earned so far then it is compound interest. If only the original amount earns interest in all periods then it is simple interest.
Maths is called the queen of science bcz the already th king is the environment and maths is being used in our daily life.Wherever u go u need mathematics,If u go to a shop to buy something u need maths to add those .And to count u need maths. EACH ANS EVERY THING AROUND US NEEDS MATHS TO LiVE.So its important that we must give first preference to maths than all other subjects. Now a days students think tht maths is a waste of time but they still don know the importance of maths..Maths is not a easy subject but if we have interenst we may like it..It is a subject of solving equations..Even the great mathematician Ramanujam didnt score welll in his maths is his childhood.But still he was able to do all the sums correctly without any mistake because of his interest - V.DHANANJAY
The lady who invented maths was called Charlotte Higgleson and she was born in Greece
Some of the many examples are calculating tax, discounts/sale prices, interest, gratuities (tips), grades, pay increases.
The difference of maths and geography is maths is more better than geography