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Question
Assuming land to be uniformly fertile, the area of land and the yield on it vary ______
Options
directly with each other.
inversely with each other.
neither directly nor inversely with each other.
sometimes directly and sometimes inversely with each other.
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Solution
Assuming land to be uniformly fertile, the area of land and the yield on it vary directly with each other.
Explanation:
If land to be uniformly fertile, then the area of land and the yield on it vary directly with each other.
Notes
Two quantities x and y are said to be in direct proportion, if they increase or decrease together in such a manner that the ratio of their corresponding values remains constant.
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