Question
PSLE
At first, a container contained 7 purple beads and some brown beads. After some purple beads were added, 57 of the beads were brown. After 45 grey beads were added to the container and now, 512 of the beads were brown. What was the number of purple beads added?
2 m

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PSLE
At first, a container contained 7 purple beads and some brown beads. After some purple beads were added, 57 of the beads were brown. After 45 grey beads were added to the container and now, 512 of the beads were brown. What was the number of purple beads added?