According to ADA Specification No. 1, what is the recommended composition for an amalgam alloy?

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65% silver, 32% tin, and 3% copper49% silver, 32% tin, and 19% copper65% silver, 29% tin, and 5-6% copperNone of these choices

Explanation

The ADA Specification No. 1 for amalgam alloy composition suggests 65% silver, 29% tin, and 5-6% copper as the ideal formulation. Other listed combinations do not comply with this standard.