Answer: she can buy the car in approximately 8.3 years
Step-by-step explanation:
We would apply the formula for determining simple interest which is expressed as
I = PRT/100
Where
I represents interest on the amount invested.
P represents the principal or amount of money invested.
R represents interest rate
T represents the duration of the investment in years.
From the information given,
P = 10000
R = 12%
I = 20000 - 10000 = 10000
Therefore,
10000 = (10000 × 12 × T)/100
10000 = 1200T
T = 10000/1200
T = 8.33 years