Question
A bag contains red and blue marbles in the ratio of 2 : 5. There is a total of 126 marbles in the bag. How many more red marbles must be added into the bag so that the number of red marbles will be the same as the number of blue marbles?
2 m

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A bag contains red and blue marbles in the ratio of 2 : 5. There is a total of 126 marbles in the bag. How many more red marbles must be added into the bag so that the number of red marbles will be the same as the number of blue marbles?