hard · GMAT Quant
A quality auditor inspects 150 reports. 110 have a formatting error (F), 100 have a data error (D), and 90 have a logic error (L). If every report has at least one error and the number of reports with all three errors is 60
How many reports have exactly one error?
- 30
- 60
- 90
- 110
- 150
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