1.

THE RATIO COMPOUNDED OF 4:9 THE DUPLICATE RATIO OF 3:4 THE TRIPLICATE RATIO OF 2:3 AND 9:7 IS

Answer»

The DUPLICATE ratio of 3:4 = \frac{3^2}{4^2}= \frac{9}{16}

The TRIPLICATE ratio of 2:3 = \frac{2^3}{3^3}= \frac{8}{27}

We need to FIND the COMPOUND ratio of \frac{4}{9} ;\ \frac{9}{16} ;\ \frac{8}{27} \ and\ \frac{9}{7}

Compound\ Ratio=\frac{4}{9} *\frac{9}{16}* \frac{8}{27}*\frac{9}{7}= \frac{2}{21}=\boxed{2:21}


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