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A bag contains 20 balls, 8 balls are green, 7 are white and 5 are red. What is minimum number of balls that must be picked up from the bag blind-folded (without replacing any of it) to be assured of picking atleast one ball of each colour?
Correct Answer: (d)
Official keyThis question appeared in the MNPSC Prelims 2014 examination (GS). It is Question 111 out of 200 questions in this paper.
This question was part of the MNPSC Prelims 2014 (GS). The MNPSC Prelims examination tests candidates on general studies, current affairs, and aptitude through multiple-choice questions.
Practice previous year questions from all MNPSC Prelims papers and compare patterns with UPSC Prelims PYQ to identify overlapping topics.