Question
Isabella put 599 coins in three boxes S, T and U. Box S and Box T contained a total of 452 coins. Box T and Box U contained a total of 405 coins. How many coins were there in Box S and Box U altogether?


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Isabella put 599 coins in three boxes S, T and U. Box S and Box T contained a total of 452 coins. Box T and Box U contained a total of 405 coins. How many coins were there in Box S and Box U altogether?