Question
P6.PC.JC.22031501-A1
PSLE
A box contained yellow marbles and grey marbles. 40% of the marbles were grey. After some black marbles were added to the box, 28% of the marbles were grey. What percentage of the marbles in the box were black?
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STUDENT

Primary 6 PERCENTAGE P6.PC.JC.22031501

19 May 2024, 12:03 AM

PSLE
A box contained yellow marbles and grey marbles. 40% of the marbles were grey. After some black marbles were added to the box, 28% of the marbles were grey. What percentage of the marbles in the box were black?
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