A land surveyor just starting in private practice needs a van to carry crew and
equipment. He can lease a used van for $3,000 per year, paid at the
beginning of each year, in which case maintenance is provided. Alternatively,
he can buy a used van for $7,000 and pay for maintenance himself. He
expects to keep the van three years at which time he could sell it for $1,500.
What is the most he should pay for uniform annual maintenance to make it
worthwhile buying the van instead of leasing it, if his pre-tax MARR is 20%?
4
Answer in dollars, without dollar sign or other symbols

Respuesta :

Answer:

It can pay up to $ 689.012  annual maintenance cost for the van at the MARR of 20%

Explanation:

Present value of the lease:

[tex]C \times \frac{1-(1+r)^{-time} }{rate}(1+r) = PV\\[/tex]

C 3,000.00

time 3 years

rate 0.2

[tex]3000 \times \frac{1-(1+0.2)^{-3} }{0.2}(+.20) = PV\\[/tex]

PV $7,583.3333

Now, present value of the van:

7,000 - salvage value + maintenance cost

[tex]\frac{Salvage}{(1 + rate)^{time} } = PV[/tex]  

Salvage: 1,500.00

time          3 years

rate  0.20000

[tex]\frac{1500}{(1 + 0.2)^{3} } = PV[/tex]  

PV   868.0556

7,000 - 868.06 = 6.131,94‬

the maximum maintenance cost should match the lease:

lease Present worth       7,583.3333

purhcase Present worth (6.131,94)

     PV of maintenance:  1,451.39

We know calculate the quota which matches this PV:

[tex]PV \div \frac{1-(1+r)^{-time} }{rate} = C\\[/tex]

PV 1,451

time 3

rate 0.2

[tex]1451.39 \div \frac{1-(1+0.2)^{-3} }{0.2} = C\\[/tex]

C  $ 689.012