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(a) Find the compound ratio of the ratio...

(a) Find the compound ratio of the ratios ` xz : y^(2) " and " x^(2) : yz`.
(b) Find the compond ratio of the ratios ` a : 2b, 2b : 3c "and " c : a `.

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The correct Answer is:
(a) `x^(3) : y^(3); (b) 1 : 3 `
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