Question
The ratio of Matthew's coins to Owen's coins at first was 3 : 7. After Matthew gave Owen 105 coins, the ratio of Matthew's coins to Owen's coins is 1 : 4. What was the number of coins they had in total?
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The ratio of Matthew's coins to Owen's coins at first was 3 : 7. After Matthew gave Owen 105 coins, the ratio of Matthew's coins to Owen's coins is 1 : 4. What was the number of coins they had in total?