Question
Gem had 42 more smoothed stones than Fanny at first. After Gem bought another 16 smoothed stones, she had thrice as many smoothed stones as Fanny. How many smoothed stones did Gem have at first?
4 m

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Gem had 42 more smoothed stones than Fanny at first. After Gem bought another 16 smoothed stones, she had thrice as many smoothed stones as Fanny. How many smoothed stones did Gem have at first?