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secondary 3 | E Maths
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STAYCIAN
STAYCIAN

secondary 3 chevron_right E Maths chevron_right Singapore

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Date Posted: 3 months ago
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So we know that Gracie needs 75% to pass. Hence she can get 25% of the 80 questions wrong. By multiplying 80 by 25% or 1/4. The answer is that she can have 20 answers wrong.
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Shawn
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