Incomes of employees in an industrial concern are given below. The total income of the
10 employees in the class over Rs. 2,500 is Rs. 30,000. Every employee belonging to the
Top 25% of the earners is required to pay 5% of his income to the worker’s relief fund.
Estimate the contribution to this fund.
Income (Rs.) Frequency
Below 500 90
500 -1000 150
1000 -1500 100
1500 - 2000 80
2000 - 2500 70
2500 and Over 10

First, what is the question?

Second, this forum deal exclusively with U.S. tax issues. It seems you are asking an Indian tax question.