Simple and compound interestIt is critical to be able to differentiate between simple interest and compound interest.How much more interest will you earn from 3 years of annual compounding of 10% compared to 3 years of simple interest on an initial 100-dollar investment?$3.00$4.49$3.10$4.82
Question
Simple and compound interestIt is critical to be able to differentiate between simple interest and compound interest.How much more interest will you earn from 3 years of annual compounding of 10% compared to 3 years of simple interest on an initial 100-dollar investment?4.494.82
Solution
First, let's calculate the interest earned from 3 years of simple interest:
Simple interest is calculated as (Principal amount * Rate of Interest * Time)/100.
So, for a $100 investment at 10% for 3 years, the simple interest would be:
(100 * 10 * 3)/100 = $30
Next, let's calculate the interest earned from 3 years of annual compounding:
Compound interest is calculated using the formula: P(1 + r/n)^(nt) - P, where 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 time the money is invested for.
For a $100 investment at 10% compounded annually for 3 years, the compound interest would be:
100(1 + 10/100)^(1*3) - 100 = $33.10
So, the difference between the compound interest and the simple interest is:
30 = $3.10
Therefore, you will earn $3.10 more from 3 years of annual compounding of 10% compared to 3 years of simple interest on an initial 100-dollar investment.
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