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Given information
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4/7 mountain bikes sold
24 mountain bikes left
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Fraction of mountain bikes unsold
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1 - 4/7 = 3/7
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Equate the fraction and find 1 whole
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3/7 of the bikes = 24
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Divide by 3/7 on both sides
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Total bikes = 24 ÷ 3/7
Total bikes = 56
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Answer: There were 56 bikes originally
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