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Ratio
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Boys : Girls : Total
3 : 1 4
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Difference in shares :
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Difference in shares = 3 - 1 = 2
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Find 1 share :
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2 shares = 28
1 share = 28 ÷ 2 = 14
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Find 4 shares (Total) :
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1 share = 14
4 shares = 14 x 4 = 56
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Answer: There are 56 people in total.
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