16) What is the present value (PV) of an investment that pays $10,000 every year for four years if the interest rate
is 7% APR, compounded quarterly?
A) $33,730
B) $33,872
C) $38,680
D) $40,000
17) A small foundry agrees to pay $250,000 two years from now to a supplier for a given amount of coking coal.
The foundry plans to deposit a fixed amount in a bank account every three months, starting three months
from now, so that at the end of two years the account holds $250,000. If the account pays 5.5% APR
compounded monthly, how much must be deposited every three months?
A) $29,770
B) $29,777
C) $29,740
D) $31,250
18) Emma runs a small factory that needs a vacuum oven for brazing small fittings. She can purchase the model
she needs for $180,000 up front, or she can lease it for five years for $4200 per month. She can borrow at 7%
APR, compounded monthly. Assuming that the oven will be used for five years, should she purchase the
oven or should she lease it?
A) Lease, since the present value (PV) of the lease is $12,224 less than the cost of the oven.
B) Lease, since the present value (PV) of the lease is $8642 less than the cost of the oven.
C) Lease, since the present value (PV) of the lease is $2212 less than the cost of the oven.
D) Buy, since the present value (PV) of the lease is $32,108 more than the cost of the oven.