Question
A bag contains gold and blue marbles in the ratio of 2 : 11. There is a total of 78 marbles in the bag. How many more gold marbles must be added into the bag so that the number of gold marbles will be the same as the number of blue marbles?
2 m

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A bag contains gold and blue marbles in the ratio of 2 : 11. There is a total of 78 marbles in the bag. How many more gold marbles must be added into the bag so that the number of gold marbles will be the same as the number of blue marbles?