How to solve XAT 2018 Question 73?

This question can be solved by applying the core concept explained in the solution above, followed by step-by-step calculation and elimination of options.

Which concept is tested in this question?

This question tests fundamental concepts commonly asked in XAT exams.

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XAT 2018 Question 73

This is a detailed step-by-step solution for XAT 2018 Question 73. Understand the concept, common mistakes, and expert tips to solve similar questions in XAT exam.

XAT

Prof. Arithmetic: There are two such instances, during 2013-14 and 2015-16
Prof. Algebra: There are three such instances, during 2011-12, 2014-15 and 2015-16
Prof. Geometry: There are two such instances, during 2010-11 and 2013-14
Prof. Calculus: There are two such instances, during 2010-11 and 2014-15
Thus, there are 2+3+2+2 = 9 such instances.
Hence, option C is the answer.

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