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In a class the average weight of 150 students is 80 kg. The average weight of boys and girls is 85 kg and 70 kg respectively. The number of girls in the class is
Correct Answer: (c)
Official keyThis question appeared in the CGPSC Prelims 2011 examination (GS). It is Question 149 out of 150 questions in this paper.
This question was part of the CGPSC Prelims 2011 (GS). The CGPSC Prelims examination tests candidates on general studies, current affairs, and aptitude through multiple-choice questions.
Practice previous year questions from all CGPSC Prelims papers and compare patterns with UPSC Prelims PYQ to identify overlapping topics.