Question
A bag contains grey and red beads in the ratio of 2 : 7. There is a total of 63 beads in the bag. How many more grey beads must be added into the bag so that the number of grey beads will be the same as the number of red beads?
2 m

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A bag contains grey and red beads in the ratio of 2 : 7. There is a total of 63 beads in the bag. How many more grey beads must be added into the bag so that the number of grey beads will be the same as the number of red beads?