XAT 2018 — QA & DI Question 25

Mixed PracticeEasy

Passage / Data

Answer the next 3 questions based on the information given below.

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The graphs below represent the performance of four professors, across years, measured on four variables: Percentage of time spent on teaching, percentage of time spent on research, feedback (on a scale of 10, right-hand side) and number of publications (right-hand side). Assume that the cumulative time spent per year on research and teaching activities are same for all four professors and each of them taught only one course of 90 classroom hours.

Which of the following, shows the maximum year to year percentage growth in feedback?

Answer & solution

Correct answer: Professor Calculus during 2012-2013

A
Professor Artihmetic during 2013-2014
B
Professor Algebra during 2015-2016
Professor Calculus during 2012-2013
D
Professor Calculus during 2014-2015
E
None of the above

Solution

Option (a): Growth is from 4 to 6.5, i.e., 62.5%.

Option (b): Growth is from 5 to 8, i.e., 60%.

Option (c): Growth is from 4 to 7, i.e., 75%.

Option (d): Growth is from 5.5 to 9, i.e., 63.6%.

Clearly, maximum growth is from 4 to 7 i.e., 75%.

Hence, option (c).

XAT 2018 — QA & DI Question 25

Answer & solution

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