Question
A bag contains gold and red marbles in the ratio of 2 : 7. There is a total of 72 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 red marbles?
2 m

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A bag contains gold and red marbles in the ratio of 2 : 7. There is a total of 72 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 red marbles?