Question
A bag contains brown and grey beads in the ratio of 2 : 5. There is a total of 70 beads in the bag. How many more brown beads must be added into the bag so that the number of brown beads will be the same as the number of grey beads?
2 m

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A bag contains brown and grey beads in the ratio of 2 : 5. There is a total of 70 beads in the bag. How many more brown beads must be added into the bag so that the number of brown beads will be the same as the number of grey beads?