7
QuizMultiple Choice

Comparing Types of Interest — Quiz

Question 7 • Advanced Financial Algebra

Skylar decides to invest $⁢3,500 Bank A offers a 3.65% annual interest rate compounded monthly, while Bank B offers a 3.65% annual rate but compounded quarterly. Skylar plans to invest for 2.5 years ( 30 months). What is the exact total amount Skylar will have in each bank after 2.5 years? Compound Interest Formula: A=P⁢(1+(r)/(n))^n⁢t

Answer
A
Bank A: 3 dollars comma 815 point 4 9, Bank B: 3 dollars comma 818 point 2 7
B
Bank A: 3 dollars comma 833 point 8 7, Bank B: 3 dollars comma 832 point 8 1
C
Bank A: 3 dollars comma 820 point 0 0, Bank B: 3 dollars comma 820 point 0 0
D
Bank A: 3 dollars comma 800 point 0 0, Bank B: 3 dollars comma 805 point 0 0

Explanation

Use the compound interest formula with the number of compounding periods over 2.5 years. Bank A compounds monthly, so it has 12 × 2.5 = 30 periods: $3,500(1 + 0.0365/12)^30 ≈ $3,833.87. Bank B compounds quarterly, so it has 4 × 2.5 = 10 periods: $3,500(1 + 0.0365/4)^10 ≈ $3,832.81. These amounts match the choice listing $3,833.87 for Bank A and $3,832.81 for Bank B.

AI-written and checked against the verified answer.

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