Find weather the following set is in direct proportion or inverse proportion
7/2, 1, 2/7, 1
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When two quantities x and yare in direct proportion (or vary directly), they are written as x ∝ y. Symbol “∝” stands for 'is proportional to'. When two quantities x and y are in inverse proportion (or vary inversely) they are written as x ∝ 1 y .
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