how to calculate intrest

lexbery (d) (227 Points)

13 April 2011  

how to calculate interst on loan on the given example

example...1

17/1/11  deposited 2,00,000/-

25/1/11 deposited 1,00,000/-

24/3/11 deposited 3,00,000/-

 at the end of 31/3/11,if interest is charged @ 12%

example..2

17/1/11  deposited 2,00,000/-

25/1/11 deposited 1,00,000/-

24/2/11 deposited 3,00,000/-

21/3/11 returned 1,50,000/-

 at the end of 31/3/11,if interest is charged @ 12%

please reply urgently as i have to file tds return for the 4th quater