1a.) During 2008 the S&P 500 index depreciated by 37.6%.† Assuming that this trend had continued, how much would a $6,000 investment in an S&P index fund have been worth after 9 years? (Round your answer to the nearest cent.)
1b.)
A $4,000 loan, taken now, with a simple interest rate of 7% per year, will require a total repayment of $6,240. At what time t will the loan mature?
Part 1a):
Future Value:
Future Value is Value of current asset at future date grown at given int rate or growth rate.
FV = PV (1+r)^n
Where r is Int rate per period
n - No. of periods
Particulars | Amount |
Present Value | $ 6,000.00 |
Int Rate | -37.6000% |
Periods | 9 |
Future Value = Present Value * ( 1 + r )^n
= $ 6000 ( 1 + -0.376) ^ 9
= $ 6000 ( 0.624 ^ 9)
= $ 6000 * 0.0143
= $ 86.06
Amount will be $ 86.06 after 9 Years.
Part 1b):
Int = Maturity Value - Loan
= $ 6240 - $ 4000
= $ 2240
Maturity Time = Int / [ Principal * Int rate ]
= $ 2240 / [ $ 4000 * 7% ]
= $ 2240 / $ 280
= 8
It takes 8 Years time to earn $ 2240 Int.
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