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Maths Paper 1, November 2024, question 7.2

Maths P1 · Finance growth and decay
7.22 marks
A laptop loses value over time using the straight-line method of depreciation. After 5 years, its value is exactly one fifth less than its original value, that is, it is worth 45 of what it cost. Calculate the annual rate of depreciation, as a percentage.

NSCBased on Nov 2024 · Paper 1 · Q7.2

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What examiners found

Reducing-balance depreciation was used where straight-line depreciation, which works like simple interest, was needed.

In our words. Source: Department of Basic Education, NSC 2024 Diagnostic Report, Part 1 (Book 1), Q7.2.

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