Question
P6.PC.JC.22031501-A1
PSLE
A box contained blue balls and grey balls. 60% of the balls were grey. After some black balls were added to the box, 12% of the balls were grey. 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, 11:51 AM

PSLE
A box contained blue balls and grey balls. 60% of the balls were grey. After some black balls were added to the box, 12% of the balls were grey. What percentage of the balls in the box were black?
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