Since he was 23 years old, Ben has been depositing $200 at the end of each month into a tax-free retirement account earning interest at the rate of 2.5%/year compounded monthly. Larry, who is the same age as Ben, decided to open a tax-free retirement account 5 years after Ben opened his. If Larry's account earns interest at the same rate as Ben's, determine how much Larry should deposit each month into his account so that both men will have the same amount of money in their accounts at age 65. (Round your answer to the nearest cent.) $

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Since he was 23 years old, Ben has been depositing $200 at the end of each month into a tax-free retirement account earning interest at the rate of 2.5%/year compounded monthly. Larry, who is the same age as Ben, decided to open a tax-free retirement account 5 years after Ben opened his. If Larry's account earns interest at the same rate as Ben's, determine how much Larry should deposit each month into his account so that both men will have the same amount of money in their accounts at age 65. (Round your answer to the nearest cent.)

 

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Sol:-

To solve this problem, we can use the formula for the future value of an annuity due:

FV = PMT * ((1 + r/k)n - 1) * (1 + r/k) / (r/k)

where PMT is the monthly payment, r is the annual interest rate, k is the number of compounding periods per year, and n is the total number of payments.

 

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