Question
The ratio of Gabriel's marbles to Evan's marbles at first was 3 : 7. After Gabriel gave Evan 28 marbles, the ratio of Gabriel's marbles to Evan's marbles is 1 : 3. What was the number of marbles they had in total?
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The ratio of Gabriel's marbles to Evan's marbles at first was 3 : 7. After Gabriel gave Evan 28 marbles, the ratio of Gabriel's marbles to Evan's marbles is 1 : 3. What was the number of marbles they had in total?