Management Aptitude Test Sep 2013 Paper

(b) Change in profit for A for pair of years 2007 and 2008
= $\left(\frac{6-4}{4}\right)\times 100$%
= $\left(\frac{2}{4}\times 100\right)$% = 50
Change in profit for B for pair of years 2007 and 2008
= $\left(\frac{5-3}{3}\right)\times 100$%
= $\left(\frac{2}{3}\times 100\right)$% = 66.6%
Change in profit for C for pair of years 2007 and 2008
= $\left(\frac{7-5}{5}\right)\times 100$%
= $\left(\frac{2}{5}\times 100\right)$% = 40%
Change in profit for A for pair of years 2007 and 2008
= $\left(\frac{4-6}{6}\right)\times 100$%
= $\left(-\frac{2}{6}\times 100\right)$% = -33.3%
So, it is clear that B has maximum profit.