If a number is increased by 25% and the resulting number is decreased by 25%, then the percentage increase or decrease finally is :

A. No change

B. Decreased by $$6\frac{1}{4}$$%

C. Increased by $$6\frac{1}{4}$$%

D. Increased by 6%

Answer: Option B

Solution(By Examveda Team)

Required % decrements :
$$\eqalign{ & = \frac{{{x^2}}}{{100}}\% \cr & = \frac{{{{\left( {25} \right)}^2}}}{{100}} \cr & = 6\frac{1}{4}\% \cr} $$