IOE+201+Homework+3+Solutions

IOE+201+Homework+3+Solutions - IOE 201 Economic Decision...

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1 IOE 201 - Economic Decision Making Homework #3 - Solutions 1. Equal payments series: Mortgage amount P = $260,000 - $50,000 = $210,000 Interest rate per month i = 0.85/12 = 0.0070833. Number of monthly payments N = 15 ×12 = 180 months. Monthly payment A is: - + + = 1 ) 1 ( ) 1 ( N N i i i P A - + + = 1 )] 12 085 . 0 ( 1 [( )] 12 085 . 0 ( 1 )[ 12 085 . 0 ( 000 , 210 $ 180 180 = $ 2,067.95 2. (a) Linear gradient series of payments: Amount needed now (present worth, P ) is + - - + = N N i i iN i G P ) 1 ( 1 ) 1 ( 2 = + - - + 10 2 10 ) 07 . 0 1 ( ) 07 . 0 ( 1 10 ) 07 . 0 ( ) 07 . 0 1 ( 200 $ = $5,543.11 (b) Let X = amount required. Company sets aside $ X now and $ X at end of first year. From (a), present worth is $5543.11 = $ + + 07 . 0 1 X X = (1.9346) X Hence, X = $(5543.11)/(1.9346) = $2,865.28 3. (a)
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This note was uploaded on 03/18/2010 for the course IOE 201 taught by Professor Dennisblumenfield during the Fall '09 term at University of Michigan-Dearborn.

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IOE+201+Homework+3+Solutions - IOE 201 Economic Decision...

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