From a salary of an officer, 10% is deducted as house rent, 15% of the rest he spend on children's education and 10% of the balance he spends on clothes. Then, he is left with Rs. 4131. Find his total salary? Choose the correct choice
A) 6000
B) 3788
C) 9009
D) 6788
E) 2772
Suppose his total salary be Rs.x, then   90% of 85% of 90% of x = 4131   \inline \Rightarrow \frac{90}{100}\times \frac{85}{100}\times \frac{90}{100}\times x=4131   \inline \therefore x=\frac{4131\times 100\times 100\times 100}{90\times 85\times 90}=6000   Hence , the salary of the officer is Rs.6000   6000nswer:6000
<result>A</result>
From a salary of an officer, 10% is deducted as house rent, 15% of the rest he spend on children's education and 10% of the balance he spends on clothes. Then, he is left with Rs. 4131. Find his total salary?