How to Create Comparison Bar Chart in Excel 2010?

Hi, I want to make a comparison chart in Excel 2010. (Comparison of Admin & Development Expenses with Revenue). The admin expenses have their own dates, development expenses have their own dates & revenue have their own dates.
I want to make a bar chart for it, where 1 bar will represent Expenses (Both Admin & Development) and the Other Bar will represent Revenue.
Please tell me, How can I make a comparison chart for it?
