Question
P6.PC.JC.22031501-A1
PSLE
A box contained grey balls and white balls. 70% of the balls were white. After some black balls were added to the box, 63% of the balls were white. What percentage of the balls in the box were black?
2 m
∑

Click ∑ button first when a symbol is required. X

Symbols

Enter the numerator and denominator


Enter value


2
Question Solution

1-minute grace period



When you click the Next button, you will be given 1-minute grace period to decide whether to do the next question type.

The question will be marked as incorrect if you exceed 1 minute and leave the question page.

Click the Back button instead if you would like to return to the topic page.

STUDENT

Primary 6 PERCENTAGE P6.PC.JC.22031501

20 May 2024, 07:59 AM

PSLE
A box contained grey balls and white balls. 70% of the balls were white. After some black balls were added to the box, 63% of the balls were white. What percentage of the balls in the box were black?
Navigations
Contact Us
Members
Links