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1). 21 ∶ 82). 1 ∶ 73). 1511 ∶ 3214). Cannot be determined |
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Answer» $(\FRAC{A}{3} = \frac{{3B}}{4} = \frac{{5C}}{6} = \frac{{7D}}{8})$ ∴ A ? D = 21 ? 8 |
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