If Rita's salary is $25\%$ more than Geeta's salary, then by what percent is Geeta's salary less than Rita's salary?

Let Geeta's salary be ₹$100$.Since Rita's salary is $25\%$ more than Geeta's salary:
$$\text{Rita’s salary}=100+25=₹125$$
Difference between their salaries = $125-100=₹25$ We need to find by what percent Geeta's salary is less than Rita's salary:
$$\text{Percentage Less}=\left(\frac{\text{Difference}}{\text{Rita’s salary}}\right)\times 100\%$$
$$\text{Percentage Less}=\left(\frac{25}{125}\right)\times 100\%=\frac{1}{5}\times 100\%=20\%$$