Answer
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Step 1: Understand the meaning of the stamp
The stamp "925RSC" on a ring provides information about the composition and quality of the metal used in making the ring.
Step 2: Analyze the stamp components
925 = 92.5 \% = \frac{925}{1000}
- "925": This part of the stamp indicates that the ring is made of sterling silver. Sterling silver is an alloy consisting of 92.5% silver and 7.5% other metals, usually copper, to make it more durable. This percentage is represented by the number 925, where 925 is 92.5% as a fraction.
Final Answer
When a ring is stamped with "925RSC," it means that the ring is made of sterling silver (92.5% silver and 7.5% other metals) and that the metal used in the ring comes from a socially and environmentally responsible source.
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