IGDTUW 2025 — Mathematics PYQ

Solution:

1. Sabse pehle Mean ($\bar{x}$) nikalenge:

   $$\bar{x}=\frac{(x-2)+x+(x+2)}{3}=\frac{3x}{3}=x$$

2. Ab Mean se deviations nikalenge:

   $$|(x-2)-x|=2$$
   $$|x-x|=0$$
   $$|(x+2)-x|=2$$

3. Mean Deviation (M.D.):

   $$\text{M.D.}=\frac{2+0+2}{3}=\frac{4}{3}$$

Answer: (b) $4/3$