SSRS Column Value based on Previous columns

Hi,

I have 3 excel worksheets named one, two & three respectively. Each has a column named 'value', that contains either yes or no. The data making up the worksheets comes directly from SQL tables.i.e. captured values.

I need to create a report that will have a column named 'Resultant'. This is based on this:  - if the 'value' in 2 or more of the worksheets is a yes, then 'Resultant' column should be yes. Otherwise it should be no.

The data making up the worksheets comes directly from sql tables.

Please assist

Regards