Question
Sean strings some gold and green smoothed stones to make a necklace. For every 3 gold smoothed stones Sean uses, he uses 9 green smoothed stones. He uses a total of 60 gold and green smoothed stones for the necklace. How many more green smoothed stones than gold smoothed stones does he use?
4 m

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Sean strings some gold and green smoothed stones to make a necklace. For every 3 gold smoothed stones Sean uses, he uses 9 green smoothed stones. He uses a total of 60 gold and green smoothed stones for the necklace. How many more green smoothed stones than gold smoothed stones does he use?