Question
A bag contains black and red beads in the ratio of 2 : 11. There is a total of 130 beads in the bag. How many more black beads must be added into the bag so that the number of black beads will be the same as the number of red beads?
2 m

Click button first when a symbol is required. X

A bag contains black and red beads in the ratio of 2 : 11. There is a total of 130 beads in the bag. How many more black beads must be added into the bag so that the number of black beads will be the same as the number of red beads?