Question

Deepak's salary is reduced by $10$% in order to have his salary back to the original amount, it must be raised by how much percent?

• A. $8$%
• B. $10$%
• C. $11\frac{1}{9}$%
• D. $12\frac{3}{7}$%

Answer 1

Answer: (C)

$11\frac{1}{9}$%

Let the salary be $Rs.100$
After reducing $10$% $=Rs.90$
Now required percentage $=\left(\frac{100-90}{90}\right)\times 100$
$=\frac{10}{90}\times 100$
$=\frac{100}{9}=11\frac{1}{9}$%.