Question
A bag contains green and gold balls in the ratio of 3 : 7. There is a total of 120 balls in the bag. How many more green balls must be added into the bag so that the number of green balls will be the same as the number of gold balls?
2 m

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A bag contains green and gold balls in the ratio of 3 : 7. There is a total of 120 balls in the bag. How many more green balls must be added into the bag so that the number of green balls will be the same as the number of gold balls?