define purity from a scientific point of view
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A alone can complete a work in 80 days more than the time taken by Aand B together. B alone can complete the work in 20 days more than the time taken by A and B together. How much time A will need to complete the work qlone
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Chemical purity refers to an element contains a single substance, without any other element tarnishing its standalone existence. Creating products that offer chemical purity can be quite an involved process.
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