Question 1055189
Interest=principal*rate*time
a)I=20000*0.06*4=$4800
B
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b)Repay $24,800.
B
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c)
I=20,000*5*0.0625=$6250.  How much more interest will they pay? Relative to the 4 year loan, which had interest of $4800, they are paying $1450 more, which isn't one of the choices.  
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d)20000*0.575*5=$5750
This isn't one of the choices.
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e)5 year loan is $6250 interest-$4800 with 4 year=$1450 difference
B
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f)I=20000*5*0.0575=$5750
Repay $25,750
This is a smaller rate than the 4 year loan, but it is spread out over an additional year, where the money could not be invested in something else. Cannot be determined.
D