Simple Explanation
Difference \(240 - 160 = 80\) है। Percentage increase B के base पर \(\frac{80}{160} \times 100 = 50\%\) होगा। इसलिए दूसरा विकल्प सही है। 25 percent difference को गलत base से लेने पर आ सकता है। परीक्षा में percentage comparison करते समय denominator उस value को बनाएं जिसके relative difference पूछा गया है, यहां Region B की density। / The difference is \(240 - 160 = 80\). The percentage by which A exceeds B is \(\frac{80}{160} \times 100 = 50\%\). Therefore, the second option is correct. A value such as 25 percent can result from using the wrong base. In examinations, when calculating a percentage comparison, use as the denominator the value relative to which the difference is being measured, here Region B's density.
