How to fit a table to page width in telerik report

I have a Telerik report with a table, which contains a column group. Currently if there are less columns there is a blank space on the right side of the page and if the columns count exceeds it goes to the next page.

Is there any way I can fit the table to the page width?

In the report the marks column is a group column. As seen in the image there is a blank space on the right side of the page. I want the column width to change dynamically to fit to the page.

Thanks.

Got the solution .

I had to set the binding rules for the column to set its width