In each column, the number at the end is the average of other two.
Eg :- $$\frac{(36+72)}{2}=\frac{108}{2}=54$$
$$\frac{(44+88)}{2}=\frac{132}{2}=66$$
Similarly, $$\frac{(32+64)}{2}=\frac{96}{2}=48$$
=> Ans - (B)
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