The number days from 13th May, 2005 to 18rd August 2005 ( both inclusive)
| From 13th May to to 31st May = 19 days|
| June = 30 days|
|July = 31 days|
| From 1st August to 19th August = 19 days|
|Total number of days = 99 days|
The number of odd days = (14 x 7 days )+1 = 99
So there is 1 odd day in the given period.