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The average age of 20 number students in a class is 11 years. If the age of teacher is added, the average age is increased by 1 year. What is the age of the teacher ?
Correct Answer: (a)
Official keyThis question appeared in the TPSC Prelims 2019 examination (GS). It is Question 151 out of 200 questions in this paper.
This question was part of the TPSC Prelims 2019 (GS). The TPSC Prelims examination tests candidates on general studies, current affairs, and aptitude through multiple-choice questions.
Practice previous year questions from all TPSC Prelims papers and compare patterns with UPSC Prelims PYQ to identify overlapping topics.