Question
Asher gave 211 of his marbles to Peter, 311 of his marbles to Flynn and 211 of his marbles to Ken. He then had 20 marbles left. How many marbles had he at first?
4 m

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Asher gave 211 of his marbles to Peter, 311 of his marbles to Flynn and 211 of his marbles to Ken. He then had 20 marbles left. How many marbles had he at first?