Answer:
You must deposit $14,824.07
Explanation:
Giving the following information:
Sister:
Investment= $14,000
Interest rate= 10.5%
Number of years= 9
You:
Investment=?
Interest rate= 9.8%
Number of years= 9
First, we need to calculate the future value of your sister:
FV= PV*(1+i)^n
FV= 14,000*(1.105^9)= $34,386.55
Now, we can determine your deposit:
PV= FV/(1+i)^n
PV= 34,386.55/ (1.098^9)= $14,824.07