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CBSE Notes 2011-2012

A. All ores contain minerals B. All minerals are not ores

Multiple choice question

A. All ores contain minerals
B. All minerals are not ores

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If both 'A' and 'B' are true

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If 'A' is true but 'B' is false

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If 'A' is false but 'B' is true

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If both 'A' and 'B' are false.