Question
A bag contains yellow and gold balls in the ratio of 2 : 5. There is a total of 147 balls in the bag. How many more yellow balls must be added into the bag so that the number of yellow balls will be the same as the number of gold balls?
2 m

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A bag contains yellow and gold balls in the ratio of 2 : 5. There is a total of 147 balls in the bag. How many more yellow balls must be added into the bag so that the number of yellow balls will be the same as the number of gold balls?