Question
P6.PC.JC.22031501-A1
PSLE
A box contained gold balls and blue balls. 40% of the balls were blue. After some black balls were added to the box, 20% of the balls were blue. What percentage of the balls in the box were black?
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STUDENT

Primary 6 PERCENTAGE P6.PC.JC.22031501

18 May 2024, 04:54 PM

PSLE
A box contained gold balls and blue balls. 40% of the balls were blue. After some black balls were added to the box, 20% of the balls were blue. What percentage of the balls in the box were black?
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