Assuming land to be uniformly fertile,

Question:

Assuming land to be uniformly fertile, the area of land and the yield on it vary

(a) directly with each other

(b) inversely with each other

(c) neither directly nor inversely with each other

(d) sometimes directly and sometimes inversely with each other

Solution:

(a) If land to be uniformly fertile, then the area of land and the yield on it vary directly with each other.

Hence, option (a) is correct.

Note 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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