Question
A bag contains white and red marbles in the ratio of 2 : 7. There is a total of 117 marbles in the bag. How many more white marbles must be added into the bag so that the number of white marbles will be the same as the number of red marbles?
2 m

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A bag contains white and red marbles in the ratio of 2 : 7. There is a total of 117 marbles in the bag. How many more white marbles must be added into the bag so that the number of white marbles will be the same as the number of red marbles?