Q2Long answer
2 • Quantities increasing or decreasing together need not always be in direct proportion, same in the case of inverse proportion. • When two quantities x and y are 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 ∝ . In examples 1 to 3, there are four options out of which one is correct. Choose the correct answer,
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(c)