The management of Unter Corporation, an architectural design firm, is considering an investment with the following cash flows:

Year Investment Cash Inflow

$1$ $ $65,000$ $ $5,000$

$2$ $ $5,000$ $ $10,000$

$3$ $ $20,000$

$4$ $ $22,000$

$5$ $ $25,000$

$6$ $ $23,000$

$7$ $ $21,000$

$8$ $ $19,000$

$9$ $ $18,000$

$10$ $ $18,000$

Required:

$1.$ Determine the payback period of the investment.

$2.$ Would the payback period be affected if the cash inflow in the last year were several times as large?