Maintenance Period Calculation

[riteshgaur]

Hello Friends,

Am a bit confused, Please guide me:
As per my knowledge, i am trying to maintain minimum balance with following dates
Start Date: 30-July-2010
End Date: 27-Oct-2010
1) Is this 90 days or 89 days?
2) Can I apply for bank statement on 28-Oct-2010?

Thanks in advance