Directions: Go through the passage given below and answer the questions based on it
Five friends are living in a PG namely Rohan, Sohan, Raju, Rohit, and Rahul. Rohan earns Rs. 21000 monthly his savings to expenditure ratio per month is 3 ∶ 4. Sohan’s expenditure is 20% more than Rohan whereas his monthly savings is Rs. 100 more than the monthly expenditure of Rahul. Raju earns Rs. 432000 yearly and his monthly savings is 1/5th of his expenditure. Rohit’s monthly Income is double that of Rahul whereas his monthly savings is double that of Sohan. Rahul’s savings to expenditure ratio is 2 ∶ 3 and his expenditure per month is Rs. 10,500.
If the water bill per year is 2% of the total yearly income of all the friends together and is divided equally among the 5 friends. What percent of Rohan’s annual expenditure is for paying water bill?