Question
PSLE
At first, a container contained 63 blue beads and some grey beads. After some blue beads were removed, 58 of the beads were grey. After 100 purple beads were added to the container and now, 513 of the beads were grey. What was the number of blue beads removed?
2 m

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PSLE
At first, a container contained 63 blue beads and some grey beads. After some blue beads were removed, 58 of the beads were grey. After 100 purple beads were added to the container and now, 513 of the beads were grey. What was the number of blue beads removed?