Question
A bag contains black and silver balls in the ratio of 3 : 11. There is a total of 98 balls in the bag. How many more black balls must be added into the bag so that the number of black balls will be the same as the number of silver balls?
2 m

Click button first when a symbol is required. X

A bag contains black and silver balls in the ratio of 3 : 11. There is a total of 98 balls in the bag. How many more black balls must be added into the bag so that the number of black balls will be the same as the number of silver balls?