The route inspection problem in D1 — Mathematics IAL Past Papers

14 papers, 2019–2025 · D1

The Mathematics IAL D1 — Decision Mathematics 1 past papers in the collection that assess the route inspection problem.

By unit: all units (26) · D1 (14) · WDM01 (12)

• D1: on 14 of 14 papers, 4–10 marks a paper (8 on average)

Read question by question: blind checks found 383 of 390 question parts tagged with the right topic (95% confidence interval 96.3–99.1%). “needs (a)” names an earlier part the listed parts build on, so a question can be worked through whole.

How topics are found and checked

Papers

• D1 · June 2025 · Q6 (a, b) · 7 marks — question paper and mark scheme
• D1 · January 2025 · Q2 (b, c) · 7 marks · needs (a) — question paper and mark scheme
• D1 · June 2024 · Q4 (c, d) · 6 marks — question paper and mark scheme
• D1 · January 2024 · Q3 (b, c) · 8 marks — question paper and mark scheme
• D1 · June 2023 · Q6 (b, c, d, e) · 7 marks · needs (a) — question paper and mark scheme
• D1 · January 2023 · Q2 (c, d) · 8 marks — question paper and mark scheme
• D1 · June 2022 · Q6 (b, c, d) · 9 marks · needs (a) — question paper and mark scheme
• D1 · January 2022 · Q5 (a, b, c) · 10 marks — question paper and mark scheme
• D1 · October 2021 · Q5 (a, b, c) · 10 marks — question paper and mark scheme
• D1 · June 2021 · Q4 (e) · 5 marks — question paper and mark scheme
• D1 · January 2021 · Q5 (c, d, e, f) · 9 marks — question paper and mark scheme
• D1 · October 2020 · Q7 (b) · 4 marks · needs (a) — question paper and mark scheme
• D1 · January 2020 · Q6 (b, c, d) · 9 marks — question paper and mark scheme
• D1 · June 2019 · Q3 (e, f, g) · 8 marks — question paper and mark scheme

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