Question
PSLE
At first, a container contained 62 white balls and some yellow beads. After some white balls were removed, 57 of the balls were yellow. After 36 blue balls were added to the container and now, 513 of the beads were yellow. What was the number of white balls removed?
2 m

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PSLE
At first, a container contained 62 white balls and some yellow beads. After some white balls were removed, 57 of the balls were yellow. After 36 blue balls were added to the container and now, 513 of the beads were yellow. What was the number of white balls removed?