Question
A bag contains purple and brown marbles in the ratio of 2 : 5. There is a total of 112 marbles in the bag. How many more purple marbles must be added into the bag so that the number of purple marbles will be the same as the number of brown marbles?
2 m

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A bag contains purple and brown marbles in the ratio of 2 : 5. There is a total of 112 marbles in the bag. How many more purple marbles must be added into the bag so that the number of purple marbles will be the same as the number of brown marbles?