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Mathematics, 30.08.2019 18:30 kellygaytan

Agold coin weigh 20 grams. if the coin contains gold, copper and tin and in the ratio 4: 3: 1 how much gold is there in the coin ? explain

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Agold coin weigh 20 grams. if the coin contains gold, copper and tin and in the ratio 4: 3: 1 how mu...
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