Question
PSLE
At first, a box contained 11 grey beads and some silver beads. After some grey beads were added, 37 of the beads were silver. After 90 blue beads were added to the box and now, 313 of the beads were silver. What was the number of grey beads added?
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PSLE
At first, a box contained 11 grey beads and some silver beads. After some grey beads were added, 37 of the beads were silver. After 90 blue beads were added to the box and now, 313 of the beads were silver. What was the number of grey beads added?