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secondary 2 | Maths
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Koh Zekai
Koh Zekai

secondary 2 chevron_right Maths chevron_right Singapore

How do I do this?

Date Posted: 3 years ago
Views: 181

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Slash
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Cheat way for inverse proportions. If xy = k, when y decreases by 10%, x will increase by 10%. I did the workings to illustrate to you but yeah, I already know it’s 25% from mental calculations or recognitions.