Math Problem Statement
Will you earn more interest in one year by depositing $2000 in a simple interest account that pays 6% or in an account that pays 5.9% interest compounded daily? How much more interest will you earn?
Solution
To determine which account will earn more interest, let's calculate the interest for both options.
Simple Interest Account:
The formula for simple interest is: where:
- is the interest,
- is the principal ($2000),
- is the annual interest rate (6% = 0.06),
- is the time in years (1 year).
Substituting the values: So, the interest earned in the simple interest account is $120.
Compound Interest Account (Daily Compounding):
The formula for compound interest is: where:
- is the amount after interest,
- is the principal ($2000),
- is the annual interest rate (5.9% = 0.059),
- is the number of times the interest is compounded per year (daily compounding means ),
- is the time in years (1 year).
First, calculate the total amount after 1 year: Now calculate the interest earned:
Let me compute this. Given values P = 2000 # Principal r = 0.059 # Annual interest rate n = 365 # Number of compounding periods per year (daily compounding) t = 1 # Time in years
Compound interest formula
A = P * (1 + r / n) ** (n * t) I_compound = A - P # Interest earned in the compound interest account
I_compoundThe interest earned in the compound interest account with daily compounding is $121.54.
Comparing the two:
- Interest from the simple interest account: $120
- Interest from the compound interest account: $121.54
So, the compound interest account earns $1.54 more than the simple interest account.
Would you like more details or have any questions? Here are some related questions you might find interesting:
- How does the frequency of compounding affect the total interest earned?
- What would happen if the time period were longer, say 5 years?
- How would the interest change if the rates were both increased to 7%?
- How does simple interest compare to compound interest for small amounts of time?
- If I deposited $3000 instead of $2000, how would that affect the interest earned in both cases?
Tip: When comparing simple vs. compound interest, the more frequently interest is compounded, the greater the total amount earned, especially over longer periods.
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Simple Interest
Compound Interest
Exponential Growth
Financial Math
Formulas
Simple Interest: I = P × r × t
Compound Interest: A = P(1 + r/n)^(nt)
Theorems
Compound Interest Theorem
Suitable Grade Level
Grades 9-12
Related Recommendation
Comparison of Simple vs Compound Interest on $2000 Deposit
Difference Between Simple and Compound Interest on a $2,300 Deposit Over 5 Years
Difference Between Simple and Compound Interest on $3,800 Deposit Over 5 Years
Calculate Difference Between Simple and Compound Interest for 5 Years
Simple and Compound Interest Calculation for $10 Million at 2.12% Interest