The percent of pure gold in 14 carat gold is about 58.3%. A 14 carat gold ring weighs 7.6 grams. How many grams of pure gold are in the ring?

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4.431g

5.320g

2.221 g

1.506 g

answer is A.

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Detailed Solution

Concept- To calculate the amount of pure gold if the ring weighs 1 gm, we will first utilise the percentage of pure gold. To obtain the needed result, multiply the result by 7.6.
As per question,
Pure gold in 14 carat gold is

And its percentage is about 58.3%
So

Hence, the correct answer is option 1) 4.431 g

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