The cost price of 10 articles is equal to the selling price of 9 articles. Find the percentage profit.
121 \( \frac{1}{9} \) %
11 \( \frac{1}{9} \) %
13 \( \frac{1}{9} \) %
10 \( \frac{1}{9} \) %
B. 11 \( \frac{1}{9} \) %
One Stop Centre scheme was launched on:
1st April 2017
1st April 2018
1st April 2016
1st April 2015
D. 1st April 2015