Kamila realizó un préstamo y el banco le entrego $ 14,704.50 en efectivo; le indico que pagara $ 500 mensuales y la libreta tiene 35 cupones. ¿Cual es la tasa de interes del préstamo?
a) 9.0%
b) 10.0%
c) 11.0%
d) 1. 0%
Answer: (d) 1. 0%
Loan = $ 14,704.50 |
Payment per Month= $ 500 |
No. of Monthly Payments = 35 |
Let 'r' be the Interest Rate |
Amount = Monthly Payment * PVAF(r%,n periods) |
$ 14,704.5 = $ 500 * PVAF(r%,35 periods) |
PVAF(r%,35 periods) = $ 14,704.5 / $ 500 |
PVAF(r%,35 periods) = 29.41 |
r = 12% per annum = 1% per month
Computation of PVAF: | |||||
r | 1+(r/12) | (1+r)^-n | 1- [(1+r)^-n] | [1- [(1+r)^-n]] /(r/12) | |
a) | 9% | 1.0075 | 0.7699 | 0.2301 | 30.68 |
b) | 10% | 1.0083 | 0.7479 | 0.2521 | 30.25 |
c) | 11% | 1.0092 | 0.7266 | 0.2734 | 29.82 |
d) | 12% | 1.0100 | 0.7059 | 0.2941 | 29.41 |
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