Mario had been walking all morning. It was lunch time, and he was very hungry when he came upon Deidra and David getting ready to eat their lunch. Mario asked if he gould join them. He said he had money to pay for his share. Deidra and David said they would be glad to share their lunch with him. Deidra had three sandwiches and David had five sandwiches. The sandwiches were evenly divided three ways and everyone enjoyed a fine lunch. When lunch was over, Mario gave Deidra and David $4.00 and told them to spilt the money between them. Considering how the sandwiches were shared equally, how did Mario indend the money to be divided?