Answer:
price of new car $25635
depreciation rate= $3000 / month
target price= $10000
daughters' age= 15 years old
- time required= (25635-10000)/3000 ≈ 5.2 years
daughter will be:
if exact time is required then 20.2 is the answer
if depreciation is calculated at the end of the year, then 21 is the answer