CAT 2019 Ratio, Proportion and Variation Question (Medium)

Question

Two numbers a and b are inversely proportional to each other. If a increases by 100 , then b decreases by

Optima Learn · Accepted Answer

Inverse proportionality implies a propto b Rightarrow a times b . Let the initial values be a and b. If a increases by 100 , the new value of a becomes a a a 2a. Since the product must remain constant a times b a times b . Substituting a times b 2a times b . Cancelling a b 2 . Thus, b becomes half o

CAT 2019 Ratio, Proportion and Variation — Previous Year Question

CAT 2019

Quantitative

Ratio, Proportion and Variation

Medium

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