Question
PSLE
At first, a container contained 5 grey balls and some gold beads. After some grey balls were added, 35 of the balls were gold. After 26 brown balls were added to the container and now, 37 of the beads were gold. What was the number of grey balls added?
2 m

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PSLE
At first, a container contained 5 grey balls and some gold beads. After some grey balls were added, 35 of the balls were gold. After 26 brown balls were added to the container and now, 37 of the beads were gold. What was the number of grey balls added?