Question
The ratio of Andrew's marbles to Violet's marbles at first was 2 : 5. After Andrew gave Violet 105 marbles, the ratio of Andrew's marbles to Violet's marbles is 1 : 4. What was the number of marbles they had in total?
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The ratio of Andrew's marbles to Violet's marbles at first was 2 : 5. After Andrew gave Violet 105 marbles, the ratio of Andrew's marbles to Violet's marbles is 1 : 4. What was the number of marbles they had in total?