Aunt Jessica said to her nephew Stan:

• "A neighbor of mine purchased a certain quantity of Beef at two shillings a pound, and the same quantity of Sausages at eighteen pence a pound."
• "Stan pointed to her that if she had divided the same money equally between Beefs and Sausages, she would have gained two pounds in total weight."

Determine exactly how much Aunt Jessica's neighbor did spend on the two items.

Note:
12 pence = 1 shilling
20 shillings = 1 Pound Stirling

****** Adapted from an original problem by H. E. Dudeney.