A flask of 500 ml is filled with dilute HCL consisting of 3 parts HCL and one part water. Now, 20% of this liquid is removed and replaced with water. 10% of this mixture is again removed and replaced with water. Calculate quantity of water is present in the flask.
1
220 ml
2
230 ml
3
240 ml
4
250 ml
5
None of the above