Mario Brothers, a game manufacturer, has a new idea for an adventure game. It can market the game as a traditional board game or as an interactive CD-ROM, but not both. Consider the following cash flows of the two mutually exclusive projects for Mario Brothers. Assume the discount rate for Mario Brothers is 9 percent.

Year	Board Game			CD-ROM
0	$	1,550		$	3,400
1		760			2,100
2		1,300			1,640
3		280			1,150

a.	What is the payback period for each project? (Do not round intermediate calculations and round your final answers to 2 decimal places (e.g., 32.16).)

	Payback period
Board game	years
CD-ROM	years

b.	What is the NPV for each project? (Do not round intermediate calculations and round your final answers to 2 decimal places (e.g., 32.16).)

	NPV
Board game	$
CD-ROM	$

c.	What is the IRR for each project? (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places (e.g., 32.16).)

	IRR
Board game	%
CD-ROM	%

d.	What is the incremental IRR? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places (e.g., 32.16).)

Incremental IRR

%