Calculation of days in interest calculations

jyothis kumar v j (ekm) (24 Points)

23 May 2012  

calculation of days in interest  calculations in average due date in -suppose i want calculate interest from april 22 to 30. How  many days are to be considered for it,and what is the logic behind it, in some problems in thestudy material of ipcc april 22 is considered,in some others it is ignored, provided april  22 is the average due date, please help me to understand  this chapter clearly.