192k views
2 votes
Alex has decided to put away $11,687 in a bank account today, to save for his retirement.

His deposit is expected to earn an 3% p.a. rate of return, compounded monthly.
How much will alex have accumulated at the end of 36 years, when he retires?

User Tomazy
by
8.1k points

1 Answer

3 votes

Final answer:

Alex will have accumulated approximately $43,751.16 at the end of 36 years when he retires, given the initial deposit, interest rate, and compounding period.

Step-by-step explanation:

To calculate how much Alex will have at the end of 36 years, we can use the formula for compound interest:

A = P(1 + r/n)nt

Where:

  • A is the final amount
  • P is the initial deposit
  • r is the annual interest rate (as a decimal)
  • n is the number of times the interest is compounded per year
  • t is the number of years

Plugging in the values from the question:

  • P = $11,687
  • r = 0.03 (3% as a decimal)
  • n = 12 (compounded monthly)
  • t = 36

We can now calculate:

  1. Divide the annual interest rate by the number of times it is compounded per year: 0.03 / 12 = 0.0025
  2. Calculate the number of times the interest is compounded over the given number of years: 12 x 36 = 432
  3. Calculate the final amount: $11,687(1 + 0.0025)432 = $43,751.16

Therefore, Alex will have accumulated approximately $43,751.16 at the end of 36 years when he retires.

User Trent Piercy
by
7.7k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.