Ram spends 30% of his salary on house rent, 30% of the rest he spends on his children's education and 24% of the total salary he spends on clothes. After his expenditure, he is left with Rs. 2500. What is Ram's salary?

Answer: Option C

Let Ram's salary be x
He spends on rent = 30% of x = $$\frac{30\text{x}}{100}$$
He spends on education = 30% from rest of the salary = $$\frac{30\times 70\text{x}}{100\times 100}=\frac{21\text{x}}{100}$$
He Spends on clothes = 24% of total salary = $$\frac{24\text{x}}{100}$$
Saving = 2500
Salary of ram = x
$$\begin{array}{rl}& \frac{30\text{x}}{100}+\frac{21\text{x}}{100}+\frac{24\text{x}}{100}+2500=\text{x}\\ & \text{or,}\frac{75x}{100}=\text{x}-2500\\ & \text{or,}75\text{x}=100\text{x}-250000\\ & \text{or, }100\text{x}-75\text{x}=250000\\ & \text{or, x}=\frac{250000}{25}\\ & \text{or, x}=10000\\ & \text{Ram’s}\text{salary = Rs}\text{.}10000\end{array}$$