Question:-
Donna borrowed $10,500 at a simple interest rate of 4% for 3 years to buy her new car. How much interest would Donna pay and how much is the car altogether ?
Answer:-
Given:-
Principal (P) = $10,500
Rate of interest (r) = 4%
Time (t) = 3 years
To Find:-
Interest of Donna and amount of car altogether.
Solution:-
We know,
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I =

I =

I = $1260
Now,
Amount of the car = $ (10,500 + 1260)
= $ 11,760
$1260 interest would Donna pay and $11,760 is the car altogether. [Answer]