AP ICET 2016 Paper

Required % increase,
A : $\left(\frac{13}{402}\right)\times 100\%$
B : $\left(\frac{52}{415}\right)\times 100\%\approx 12.5\%$
C : $\left(\frac{46}{387}\right)\times 100\%\approx 11.9\%$
D : $\left(\frac{32}{405}\right)\times 100$
Note : A vs D ; denominator being equal, 13 < 32. Hence A gets eliminated. C vs D : 387 < 402 as well as 46 > 32. Hence, D gets eliminated. So, we need to calculate only for B and C.