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Exhibit 12.1

Computation of Ratio of Earnings to Fixed Charges

		Year Ended November 30,
														6 Months Ended May 31, 2002
		1997		1998		1999		2000			2001
Earnings:
	Income from continuing operations before income taxes	$	54	$	60	$	74	$	87		$	187		$	15
	Fixed charges included in income from operations per below		14		8		7		20			36			8
	Minority interest		—		—		—		(3	)		(4	)		—
	Amortization of financing costs		—		—		—		—			3			2
	Total earnings		68		68		81		104			222			25
Fixed Charges:
	Interest expense	$	12	$	6	$	6	$	18		$	33		$	7
	Portion of rent expense representing interest		2		2		1		2			3			1
	Fixed charges included in income from operations		14		8		7		20			36			8
	Capitalized financing costs		—		—		1		—			14			6
	Total fixed charges		14		8		8		20			50			14
Ratio of earnings to fixed charges			4.9		8.5		10.1		5.2			4.4			1.8

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Computation of Ratio of Earnings to Fixed Charges