Question
PSLE
At first, a box contained 3 gold marbles and some purple beads. After some gold marbles were added, 47 of the marbles were purple. After 60 grey marbles were added to the box and now, 413 of the beads were purple. What was the number of gold marbles added?
2 m

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PSLE
At first, a box contained 3 gold marbles and some purple beads. After some gold marbles were added, 47 of the marbles were purple. After 60 grey marbles were added to the box and now, 413 of the beads were purple. What was the number of gold marbles added?