Title
West Texas A&M University - Home
Virtual Math Lab

College Algebra
Answer/Discussion to Practice Problems  
Tutorial 62:
Compound Interest: Present Value


WTAMU > Virtual Math Lab > College Algebra > Tutorial 62: Compound Interest: Present Value


 

checkAnswer/Discussion to 1a
$550 due in 4 years at 7 3/4% compounded annually. 

 
ad1a

 
 
 
 
 

*Present value formula
 
 

*Plug in values into PV form.

*Calculate number inside (  ) and exponent 
*Raise inside of (  ) to the -4th power 
 
 
 


 
Our present value would have to be $408.03.

(return to problem 1a)

 


 

checkAnswer/Discussion to 2a
A trust fund for a 1 year old child is being set up by a single payment so at the age of 25 the child will receive $50000.  Find how much the payment is if an interest rate of 5% compounded monthly is assumed. 

 
ad2a

 
 
 
 
 
 

*Present value formula
 

*Plug in values into PV form.
 

*Calculate number inside (  ) and exponent 
*Raise inside of (  ) to the -288th power 
 
 
 


 
So we would have to currently put in $15097.30, to get the return of $50000 after being compounded monthly at a rate of 5% for 24 years.  Not bad. 

(return to problem 2a)

 

Buffalo top

 

WTAMU > Virtual Math Lab > College Algebra > Tutorial 62: Compound Interest: Present Value


Last revised on October 8, 2011 by Kim Seward.
All contents copyright (C) 2002 - 2011 WTAMU and Kim Seward. All rights reserved.