Defining a custom range for tasks older than 15 days but less than 45 days.

Defining a custom range for tasks older than 15 days but less than 45 days.

Hello,
I am attempting to create a set of reports that will track a lead as it's tasks age past their initial due date.

I would like my reports to look like this:
Report 1 = Tasks due date less than 15 days (this one is easy)
Report 2 = Tasks due date greater than 15 days but less than 45 days.
Report 3 = Tasks due date greater than 45 days but less than 90 days.

My problem is I don't see how Zoho will allow me to create a report that filters all leads between a task age range.
Only a custom date range which does not adapt.

Any help or answers would be appreciated.