andy has the cards 1,5,7,

Question

belle has the cards 5,4,7
carol has the cards 2,4,6,
andy draws the question card. do you see 2 or more players who cards sum to the same value? he answered yes. next belle draws the question card. Of the five odd numbers how many odd numbers do you see, she says all of them. andy speaks up I know what I have, he says a1,a5,and a7.summarize the salient facts of the problem. Explain the strategy for solving the problem. present a step by step solution of the problem. Clearly state your answer.