If salary of an employee has increased by `200%` in the last 5 years,is now has become :

CO_(2) content of atmosphere has increased in the last 150 years from

CO_(2) content of atmosphere has increased in the last 150 years from

The salary of an officer has been increased by 50%. By what percent the new salary must be reduced to restore the original salary?

The salary of an officer has been increased by 50%. By what percent the new salary must be reduced to restore the original salary?

The respective ratio of salaries of A and B is 8:7. if the salary of B increased by 20% and the salary of A increases by 21% , the new ratio becomes 96:77 respectively . What is A's salary ?

If the numerator of a fraction is increased by 200% and the denominater is increased by 400%,the resultant fraction is 9/(20) What is the original fraction?

Number of employees in a factory decreases in the ratio of 8:7 and salary of employees increase in the ratio of 5:6 . Find whether the total salary given to the employees is increased or decreased and in what ratio ?