Answer: C) $2,400
Explanation:
The formula for simple interest is expressed as
I = PRT/100
Where
P represents the principal
R represents interest rate
T represents time in years
I = interest after t years
Considering the 5-year loan
T = 5 years
P = $20000
R = 6%
Therefore
I = (20000 × 6 × 5)/100
I = 600000/100
I = $6000
Considering the 6-year loan
T = 6 years
P = $20000
R = 7%
Therefore
I = (20000 × 7 × 6)/100
I = 840000/100
I = $8400
The difference in the amount of interest Josh would have to pay for these two loans is
8400 - 6000 = $2400