CAT Quant Practice Problems

Question: A and B work at digging a ditch alternately for a day each. If A can dig a ditch in‘a’days and B can dig that ditch in ‘b’ days, will work get done faster if A begins the work?

I. n is a positive integer such that \(n\left( {\frac{1}{a} + \frac{1}{b}} \right) = 1\)

II. b > a


  1. The question can be answered with the help of statement I alone,
  2. question can be answered with the help of statement II, alone,
  3. Both, statement I and statement II are needed to answer the question, and
  4. The question cannot be answered even with the help of both the statements.

Correct Option:1

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