Question
A bag contains brown and red marbles in the ratio of 3 : 11. There is a total of 70 marbles in the bag. How many more brown marbles must be added into the bag so that the number of brown marbles will be the same as the number of red marbles?
2 m

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A bag contains brown and red marbles in the ratio of 3 : 11. There is a total of 70 marbles in the bag. How many more brown marbles must be added into the bag so that the number of brown marbles will be the same as the number of red marbles?