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Condensed Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified | 3 Months Ended
--- | ---
Aug. 31, 2012 | Aug. 31, 2011
Sales: |  |
Sales from products | $ 327.5 | $ 331.4
Sales from services | 223.0 | 154.1
Total sales | 550.5 | 485.5
Cost and operating expenses: |  |
Cost of products | 284.1 | 290.4
Cost of services | 176.1 | 119.4
Selling, general and administrative | 53.3 | 43.1
Total costs and operating expenses | 513.5 | 452.9
Earnings from joint ventures | 1.4 | 0.2
Operating income | 38.4 | 32.8
(Loss) on extinguishment of debt | (0.2) |
Interest expense | (10.6) | (7.5)
Interest income | 0.4 | 0.1
Income before provision for income taxes | 28.0 | 25.4
Provision for income taxes | 9.7 | 8.8
Net income attributable to AAR and noncontrolling interest | 18.3 | 16.6
(Income) loss attributable to noncontrolling interest | (0.1) |
Net income attributable to AAR | $ 18.2 | $ 16.6
Earnings per share - basic (in dollars per share) | $ 0.46 | $ 0.41
Earnings per share - diluted (in dollars per share) | $ 0.45 | $ 0.41

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