How much money have gambled?

On a table of a game room, there are three people, Angel, Beatriz and Ceferino, making poker betting. On one hand, the three will place a bet by an amount entirely and different from euros, with the peculiarity that Ceferino which is more betting, Angel which less and each bet the sum of 10 euros.

A fourth person who knows the circumstances of the game mentioned in the preceding paragraph is located behind the three players. This person, who has extensive experience as a poker player since he practiced daily at, at the time which sees Angel to take the money that goes to bet says: “I know the amount of money going to bet every one of you”.

Question: If you were the fourth person, you could deduct also how much money bet each player?

I sincerely hope that there is someone who can reason the response.

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