Salary of Ram is first increased by 20% and then increased by x%. Salary of another person Kumar is first increased by 20% then decreased by 10% and again decreased by 25/9 %. Net percentage change in salary of Kumar is equal to x%. If salary of Ram is increased by Rs. 660 in 2nd time, find initial salary of Ram was:
1
Rs. 6,600
2
Rs. 11,000
3
Rs. 12,000
4
Rs. 11,500