O/L Mathematics · Theory Notes

Inverse Proportion

Learn the key concepts of Inverse Proportion for O/L Mathematics, explained simply · Aligned with the NIE syllabus

Where this fits in the syllabus

Grade 10 · Term 1

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Learn the key concepts of Inverse Proportion for O/L Mathematics, explained simply

About O/L Mathematics: O/L Mathematics covers number systems, algebra, geometry, trigonometry, and statistics across Grade 10 and 11.

When more workers join a job it finishes sooner; when a bus goes faster it arrives earlier. In each case one quantity grows while the other shrinks — but something hidden stays fixed. Inverse proportion is the maths that names that fixed thing and lets you predict the "how much" exactly: how many days, how fast, how many people. It shows up every year at O/L, in physics later (Boyle's Law), and in everyday planning.

Source: Idasara knowledge pack — english/OL_10/mathematics v17, short_notes: Lesson 09 - Inverse Proportion

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