What is maximum Reylonds number for laminar flow?
The table below shows the number of employees of an office, classified according to the income-tax paid by them.
Income Tax
(Rupees)
Number of Employees
1000 − 2000
2000 − 3000
3000 − 4000
4000 − 5000
5000 − 6000
6000 − 7000
7000 − 8000
8000 − 9000
8
10
15
18
22
6
3
Compute the median income-tax.