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Who is more efficient worker among two persons A and B ? (I) A and B together can finish a job in 12 days. (II) B alone finishes the same job in 20 days.
Correct Answer: (c)
Official keyThis question appeared in the NPSC Prelims 2019 examination (GS). It is Question 67 out of 200 questions in this paper.
This question was part of the NPSC Prelims 2019 (GS). The NPSC Prelims examination tests candidates on general studies, current affairs, and aptitude through multiple-choice questions.
Practice previous year questions from all NPSC Prelims papers and compare patterns with UPSC Prelims PYQ to identify overlapping topics.