If each of the 20 bolts of fabric on a shelf is either 100 percent cotton, 100 percent wool, or a mixture of...

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Source: Veritas Prep

If each of the bolts of fabric on a shelf is either 100 percent cotton, 100 percent wool, or a mixture of cotton and wool, how many bolts contain both cotton and wool?

1) Of the 20 bolts, 18 contain some wool and 14 contain some cotton
2) Of the 20 bolts, 6 are 100 percent wool

The OA is A
Source: — Data Sufficiency |