Math Problem Statement

Given the following two investments:

Investment X: $2,000 invested at 6% simple interest rate.

Investment Y: $1,000 invested at 5% interest rate with interest compounded annually.

Assume no money is ever withdrawn from either investment. Which of the following is true?

Group of answer choices

X will always have a higher balance because it has a higher principal and higher interest rate.

Y will eventually have a higher balance than X but it will take at least 50 years.

Y will have a higher balance than X after 39 years.

Solution

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Math Problem Analysis

Mathematical Concepts

Simple Interest
Compound Interest
Exponential Growth

Formulas

Simple Interest: A = P(1 + rt)
Compound Interest: A = P(1 + r/n)^(nt)

Theorems

Exponential Growth of Compound Interest

Suitable Grade Level

Grades 11-12