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GATE 2014 EE (EE2) – Question 9

General Aptitude · Quantitative Aptitude: Arithmetic and Number Computation · 2 marks · Numerical answer

The line graph shows male-to-female student ratios over five years. If female enrolment doubled in 2009, by what percentage did male enrolment increase in 2009?

Diagram for GATE 2014 EE (EE2) question 9

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Correct answer: 140 to 140

Explanation

Let female students in2008 be F, so males are2.5F. In2009 females double to2F and the ratio becomes3, giving males6F. The increase is(6F−2.5F)/(2.5F)×100=**140%**. Comparing the ratios alone would miss the change in female count.