# Topic Questions: • find by integration a general form of solution for a first order differential equation in which the variables are separable — 9709 P3 Differential equations

> 42 9709 P3 Differential equations topic questions (297 marks) on find by integration a general form of solution… — 42 papers, 2020–2026. Open the exact…

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CIE IAL · Mathematics · 9709 P3 · Differential equations

42 9709 P3 Differential equations topic questions are tagged to this syllabus point across 42 papers (2020–2026). Only the parts whose knowledge graph matches this syllabus statement are counted, and the table shows which parts of each question are involved.

- 42 topic questions
- 42 papers
- 297 tagged marks
- 56.0% of topic questions
- 74.8% of topic marks
- 2020–2026
- Syllabus 2020–2027
- [All 9709 P3 Differential equations topic questions](https://www.examsci.com/topics/cie-ial/mathematics/9709-p3/differential-equations/)
- [All paper codes](https://www.examsci.com/topics/)

Core finding

**This Differential equations syllabus point appears in 42 9709 P3 papers across 2020–2026, contributing 42 topic questions and 297 marks.** The most recent appearance is 9709/31 May/June 2026. That equals 56.0% of the 75 topic questions and 74.8% of the 397 marks tagged to Differential equations. Only parts tagged to this subtopic are counted, so a four-part question can contribute one item and one part's marks. The table lists every matching question, its tagged parts and marks, with a link back to the paper page. Sessions are newest first, so the statement can be traced back through the full paper history.

## Topic questions by session

Newest sessions first. Parts and marks count only the parts tagged to this subtopic; “x of y parts” shows how much of the question is tagged elsewhere. Select the paper cell to open the matching question on the paper page, or use **Go to Practice Hub** to answer that exact question in the Interactive Practice Hub.

| Paper | Question | Type | Parts | Marks | Difficulty | Practice |
| --- | --- | --- | --- | --- | --- | --- |
| [**9709/31** May/June 2026 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2026-may-june-9709-31/#q-11) | **Q11** Quotient Rule and Separable Differential Equation - CIE Pure Mathematics 2026 Q11 | FRQ | 1 of 2 parts ((b)) | 6 of 9 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=5a21f0d9-d2ad-4ffc-9254-eb21daddd8fc&question_id=f0e43720-fb3e-4ed2-9031-8d2d0798fae9&source_detail=9709%2F31+May%2FJune+2026) |
| [**9709/32** May/June 2026 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2026-may-june-9709-32/#q-10) | **Q10** Partial Fractions and Differential Equations - CIE A Level Mathematics 2026 June Paper 32 Q10 | FRQ | 1 of 2 parts ((b)) | 7 of 11 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=d6e975a2-e88a-4b40-82f8-1078f926f377&question_id=e43fa509-f3b1-44f8-9f10-e703c292a3d7&source_detail=9709%2F32+May%2FJune+2026) |
| [**9709/33** May/June 2026 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2026-may-june-9709-33/#q-10) | **Q10** Differential Equation with Integration by Parts - CIE Pure Mathematics 2026 Q10 | FRQ | 1 part | 8 | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=1cab28c8-892b-458b-b5a9-59aac0e92474&question_id=40f25899-2f00-4ed5-abc6-9ffff37f1ff4&source_detail=9709%2F33+May%2FJune+2026) |
| [**9709/32** March 2026 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2026-march-9709-32/#q-8) | **Q8** Separable First-Order Differential Equation - CIE P3 2026 Mar Q8 | FRQ | 1 part | 8 | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=0fd758f5-8815-4e29-a05d-65b87156efed&question_id=793b5284-9673-4a16-8566-0771390cf66e&source_detail=9709%2F32+March+2026) |
| [**9709/31** October/November 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2025-october-november-9709-31/#q-8) | **Q8** Separable Variable Differential Equation - CIE Pure Mathematics 2025 Nov Q8 | FRQ | 1 part | 8 | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=7ffa0858-5cbd-490e-9150-de28164f7cda&question_id=12d747d1-51d6-4aa6-bc39-af3cbcdb28d7&source_detail=9709%2F31+October%2FNovember+2025) |
| [**9709/32** October/November 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2025-october-november-9709-32/#q-10) | **Q10** Water Tank Differential Equation Formulation and Solution - CIE A Level Maths 2025 Winter P32 Q10 | FRQ | 1 of 2 parts ((b)) | 5 of 9 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=d271f67a-f544-4649-81c5-cdf7c8a90ccc&question_id=955465bf-03bf-435f-a2c7-efae59b4974d&source_detail=9709%2F32+October%2FNovember+2025) |
| [**9709/33** October/November 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2025-october-november-9709-33/#q-10) | **Q10** Partial Fractions and Differential Equation - CIE Pure Mathematics 2025 Nov Paper 33 Q10 | FRQ | 1 of 2 parts ((b)) | 6 of 8 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=17e7e425-f366-4dd8-9a85-08207772196f&question_id=080b778a-ba62-4f9a-b8fc-baea5a7ff60e&source_detail=9709%2F33+October%2FNovember+2025) |
| [**9709/35** October/November 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2025-october-november-9709-35/#q-11) | **Q11** Logistic Growth Differential Equation - CIE A Level Mathematics 2025 Winter Paper 35 Q11 | FRQ | 1 of 2 parts ((b)) | 8 of 9 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=2b303406-630f-44c2-814e-7e47fa277f61&question_id=5ce235a8-f875-4b0d-ae70-b7d5d734b553&source_detail=9709%2F35+October%2FNovember+2025) |
| [**9709/31** May/June 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2025-may-june-9709-31/#q-10) | **Q10** Polynomial Division and Differential Equations - CIE Pure Mathematics 2025 Jun Paper 31 Q10 | FRQ | 1 of 2 parts ((b)) | 5 of 8 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=d305e649-31d7-4036-b6fa-6295b81b011f&question_id=234c36c1-7b4f-4ed1-a21a-dc7ea127d28b&source_detail=9709%2F31+May%2FJune+2025) |
| [**9709/32** May/June 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2025-may-june-9709-32/#q-8) | **Q8** Separable Differential Equation - CIE A-Level Pure Mathematics 2025 May/June Paper 32 Q8 | FRQ | 1 part | 7 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=b93317c4-369e-4279-a9c6-be0a47e5beeb&question_id=614d796e-7ca4-4061-bd9a-766b43734968&source_detail=9709%2F32+May%2FJune+2025) |
| [**9709/33** May/June 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2025-may-june-9709-33/#q-10) | **Q10** Separable Differential Equation - CIE A-Level Math 2025 Jun Paper 33 Q10 | FRQ | 1 of 2 parts ((a)) | 8 of 10 on the paper | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=b947d72f-ec97-4d00-ae14-757145ba0aa9&question_id=15a2950e-bcbd-4bc7-a6c3-4b086b857a84&source_detail=9709%2F33+May%2FJune+2025) |
| [**9709/35** May/June 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2025-may-june-9709-35/#q-11) | **Q11** Solving Differential Equation with Inverse Tan and Logarithm - CIE A Level Mathematics | FRQ | 1 part | 8 | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=2cdcf4cc-bb80-426a-8133-c75f6e9636f0&question_id=7094785d-1d57-4826-a502-cb33167383a9&source_detail=9709%2F35+May%2FJune+2025) |
| [**9709/32** March 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2025-march-9709-32/#q-6) | **Q6** Separable Differential Equation with Trigonometric Integration - CIE A-Level Math 2025 Mar Paper 32 Q6 | FRQ | 1 part | 7 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=ebe23b18-f2b2-4e16-8e60-c5ac5649cb15&question_id=e67a1f9f-9389-45af-85cd-bc4cad0d9a3d&source_detail=9709%2F32+March+2025) |
| [**9709/31** October/November 2024 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2024-october-november-9709-31/#q-10) | **Q10** Water Tank Draining Differential Equation - CIE A-Level Maths 2024 Nov Paper 31 Q10 | FRQ | 1 of 2 parts ((b)) | 6 of 10 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=70a34762-5adb-4bbc-a073-ccdcbf562e7c&question_id=20a239fd-993e-4fe7-8674-59503d8b2c31&source_detail=9709%2F31+October%2FNovember+2024) |
| [**9709/33** October/November 2024 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2024-october-november-9709-33/#q-10) | **Q10** Differential Equation for Water Tank Leakage - CIE A-Level Pure Mathematics 2024 Nov Q10 | FRQ | 1 of 2 parts ((b)) | 5 of 8 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=eea0ef07-a2e6-40ec-b1f1-0940ce02a199&question_id=25a3d783-0c69-4675-a236-6fc1cf4c6790&source_detail=9709%2F33+October%2FNovember+2024) |
| [**9709/31** May/June 2024 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2024-may-june-9709-31/#q-11) | **Q11** Differential Equation Modeling Plant Disease - CIE A-Level Maths 2024 Jun Paper 31 Q11 | FRQ | 1 of 2 parts ((b)) | 9 of 11 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=d001bb3e-de7a-4991-8014-a2761a618aba&question_id=56e0c17b-d3a8-4a89-828f-fab85e4576c3&source_detail=9709%2F31+May%2FJune+2024) |
| [**9709/32** May/June 2024 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2024-may-june-9709-32/#q-10) | **Q10** Differential Equations and Trigonometric Integration - CIE A Level Mathematics 2024 Jun P32 Q10 | FRQ | 1 of 2 parts ((b)) | 8 of 10 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=b47257e0-776e-40f2-b0b7-69834ea85d57&question_id=6616cd61-7b59-46b8-822c-4eba12671639&source_detail=9709%2F32+May%2FJune+2024) |
| [**9709/33** May/June 2024 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2024-may-june-9709-33/#q-9) | **Q9** Volume Rate Differential Equation Model - CIE A-Level Pure Mathematics | FRQ | 1 of 2 parts ((b)) | 6 of 11 on the paper | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=7e0feb6b-4f09-4f55-8eeb-a9c09d82ec52&question_id=db8f92ad-426d-4176-a45f-4e89690cdfd0&source_detail=9709%2F33+May%2FJune+2024) |
| [**9709/32** March 2024 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2024-march-9709-32/#q-11) | **Q11** Separable Differential Equation with Integration by Parts - CIE 9709 March 2024 Paper 32 Q11 | FRQ | 1 part | 9 | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=e042eca9-7da3-4a8b-b612-449ce3e020fd&question_id=af1d8d94-bd18-410d-9609-df2205516783&source_detail=9709%2F32+March+2024) |
| [**9709/32** October/November 2023 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2023-october-november-9709-32/#q-11) | **Q11** Separable Differential Equation Solution and Limit - CIE 9709 2023 Nov Paper 32 Q11 | FRQ | 1 of 2 parts ((a)) | 8 of 9 on the paper | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=3fb73dde-04cc-4e60-91c5-1ddfee06f24d&question_id=32339f78-4373-4d23-baac-1acf027a0def&source_detail=9709%2F32+October%2FNovember+2023) |
| [**9709/33** October/November 2023 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2023-october-november-9709-33/#q-8) | **Q8** Separable Differential Equation with Exponential and Cosine - CIE A-Level Maths 2023 Q8 | FRQ | 1 part | 7 | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=719f9f72-ffe6-4873-b35f-05b84c1bcd86&question_id=204b6d42-b85b-44c8-a115-14f76418f1bb&source_detail=9709%2F33+October%2FNovember+2023) |
| [**9709/31** May/June 2023 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2023-may-june-9709-31/#q-7) | **Q7** Separable Differential Equation - CIE Pure Mathematics 2023 Q7 | FRQ | 1 part | 8 | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=cfca2669-2cc1-43c6-a0cc-6132556376c3&question_id=26492ce9-7c90-4f93-8d6f-b5ee0ae20d46&source_detail=9709%2F31+May%2FJune+2023) |
| [**9709/32** May/June 2023 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2023-may-june-9709-32/#q-8) | **Q8** Separable Differential Equation with Inverse Tan - CIE Pure Mathematics 2023 Q8 | FRQ | 1 of 2 parts ((a)) | 7 of 8 on the paper | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=07774ae7-6d21-4646-8307-908dbae6fe03&question_id=a5bf9dd8-1827-40cf-8b77-8c892b5282a6&source_detail=9709%2F32+May%2FJune+2023) |
| [**9709/33** May/June 2023 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2023-may-june-9709-33/#q-8) | **Q8** Separable Differential Equation - CIE Pure Mathematics 3 2023 Jun Q8 | FRQ | 1 part | 8 | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=38715021-d2e9-4b06-9487-8984689a84e7&question_id=d7d53a58-207f-4a97-9332-72386b62806c&source_detail=9709%2F33+May%2FJune+2023) |
| [**9709/32** March 2023 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2023-march-9709-32/#q-9) | **Q9** Differential Equation with Variable Separation - CIE Pure Mathematics 2023 Mar Paper 32 Q9 | FRQ | 1 part | 7 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=fb85986e-2f5e-482c-8e08-173425b67cc3&question_id=d133ac71-3979-4f6f-8b6b-ebd0385f225f&source_detail=9709%2F32+March+2023) |
| [**9709/32** October/November 2022 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2022-october-november-9709-32/#q-7) | **Q7** Trigonometric Derivative and Differential Equation - CIE Pure Mathematics 2022 Nov Paper 32 Q7 | FRQ | 1 of 2 parts ((b)) | 7 of 8 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=ec345ecb-a979-44f7-9e14-294a778ff934&question_id=36c02a6f-9504-4568-9eb0-698a0afa6ec4&source_detail=9709%2F32+October%2FNovember+2022) |
| [**9709/33** October/November 2022 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2022-october-november-9709-33/#q-10) | **Q10** Differential Equation for Pool Water Volume - CIE Pure Mathematics 3 | FRQ | 1 of 3 parts ((b)) | 6 of 9 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=955ef535-8636-46dc-9b2a-f083375bbec1&question_id=1943f405-7a4d-4597-aa02-7ef5159d0611&source_detail=9709%2F33+October%2FNovember+2022) |
| [**9709/31** May/June 2022 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2022-may-june-9709-31/#q-4) | **Q4** Separable Differential Equation with Initial Condition - CIE Pure Mathematics 2022 Jun Paper 31 Q4 | FRQ | 1 part | 7 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=09685b56-86ca-46e2-9c33-353cef143122&question_id=bd4dcd81-6ffb-4107-acf1-207bb5a9c9f1&source_detail=9709%2F31+May%2FJune+2022) |
| [**9709/32** May/June 2022 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2022-may-june-9709-32/#q-6) | **Q6** Separable Differential Equation - CIE Mathematics 2022 Jun Q6 | FRQ | 1 of 2 parts ((a)) | 7 of 8 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=6ad396ce-ab9f-4c82-bba2-087b907a1ea1&question_id=e5fdf76f-f2e0-49fe-a85c-887146d005f4&source_detail=9709%2F32+May%2FJune+2022) |
| [**9709/33** May/June 2022 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2022-may-june-9709-33/#q-8) | **Q8** Insect Population Differential Equation Model - CIE A Level Mathematics 2022 Jun Paper 33 Q8 | FRQ | 1 of 3 parts ((a)) | 5 of 9 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=9659571c-b4b6-458e-b3ff-de05ece281b2&question_id=f867ef02-84c6-40b9-b246-24c31738535d&source_detail=9709%2F33+May%2FJune+2022) |
| [**9709/32** March 2022 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2022-march-9709-32/#q-9) | **Q9** Separable Differential Equation with Partial Fractions - CIE A Level Mathematics 2022 Mar Paper 32 Q9 | FRQ | 1 part | 9 | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=494ba528-51f5-41a2-babf-2cc4c40fecf4&question_id=84d7e9d7-5bc2-447a-90c6-bf244e92f308&source_detail=9709%2F32+March+2022) |
| [**9709/32** October/November 2021 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2021-october-november-9709-32/#q-7) | **Q7** Separable Differential Equation - CIE A-Level Mathematics 2021 Nov Paper 32 Q7 | FRQ | 1 part | 7 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=e143fbb0-4c0c-42bd-8875-d51f745a2eeb&question_id=296a478b-b2ea-4053-a4f6-2f997a15963c&source_detail=9709%2F32+October%2FNovember+2021) |
| [**9709/33** October/November 2021 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2021-october-november-9709-33/#q-10) | **Q10** Plant Disease Differential Equation - CIE 9709 W21 P33 Q10 | FRQ | 1 of 4 parts ((b)) | 5 of 11 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=3dab83de-45d8-4d88-a013-44ac3c4045e2&question_id=9143ea9d-dfa6-48e9-ac5d-421e1893523a&source_detail=9709%2F33+October%2FNovember+2021) |
| [**9709/31** May/June 2021 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2021-may-june-9709-31/#q-10) | **Q10** Differential Equation with Partial Fractions - CIE Mathematics 2021 Jun Paper 31 Q10 | FRQ | 1 part | 11 | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=3c0392b5-afcc-4c08-8c90-18e99517d45c&question_id=70c1f6b5-4a31-4e1e-bb93-619898f4f328&source_detail=9709%2F31+May%2FJune+2021) |
| [**9709/32** May/June 2021 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2021-may-june-9709-32/#q-7) | **Q7** Differential Equation for Curve Gradient - CIE 9709 2021 Jun Paper 32 Q7 | FRQ | 1 part | 7 | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=193dfa4e-69a9-4d3a-8797-abee668ebcf8&question_id=697660bb-26f1-4c98-be1f-592884635d12&source_detail=9709%2F32+May%2FJune+2021) |
| [**9709/33** May/June 2021 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2021-may-june-9709-33/#q-7) | **Q7** Differential Equation from Geometric Properties - CIE 9709 2021 Jun Paper 33 Q7 | FRQ | 1 of 3 parts ((b)) | 6 of 9 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=279950d4-e630-466e-8074-e1e13ad3f5e6&question_id=28d4cdf5-e368-4461-8355-24fd8496bbd4&source_detail=9709%2F33+May%2FJune+2021) |
| [**9709/32** March 2021 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2021-march-9709-32/#q-4) | **Q4** Separable Differential Equation - CIE A-Level Mathematics 2021 March Paper 32 Q4 | FRQ | 1 of 2 parts ((a)) | 6 of 7 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=ab7133da-61cb-4438-b5f6-ad6909bb250e&question_id=c7ef615f-c894-4667-9e15-2b63ec0a0598&source_detail=9709%2F32+March+2021) |
| [**9709/31** October/November 2020 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2020-october-november-9709-31/#q-8) | **Q8** Separable Differential Equation - CIE 9709 W20 P31 Q8 | FRQ | 1 part | 6 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=6d3dbf03-a763-4245-9cd4-e9bb82088912&question_id=4fe63ff8-80c3-42f1-ba7c-6ae67bf96e47&source_detail=9709%2F31+October%2FNovember+2020) |
| [**9709/33** October/November 2020 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2020-october-november-9709-33/#q-8) | **Q8** Separable Differential Equation - CIE Pure Mathematics 2020 Nov Paper 33 Q8 | FRQ | 1 part | 6 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=086627cb-e617-484f-abc7-431aab41e928&question_id=fda15998-6d37-499e-9316-225858bf14cf&source_detail=9709%2F33+October%2FNovember+2020) |
| [**9709/31** May/June 2020 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2020-may-june-9709-31/#q-8) | **Q8** Separable Differential Equation - CIE 2020 Jun Paper 31 Q8 | FRQ | 1 of 2 parts ((a)) | 8 of 9 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=30d827e6-7a05-4ddb-93bb-64f6a01bb238&question_id=f7abd17a-597e-4d1e-8381-6e3bc66bfc9b&source_detail=9709%2F31+May%2FJune+2020) |
| [**9709/33** May/June 2020 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2020-may-june-9709-33/#q-10) | **Q10** Hemispherical Tank Differential Equation - CIE Pure Mathematics 2020 Jun Q10 | FRQ | 1 of 2 parts ((b)) | 8 of 12 on the paper | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=ff5efdae-7baa-4c33-aa9c-f8b1c25c428d&question_id=e8b89f68-e542-40c1-9c90-ed534b69ee2e&source_detail=9709%2F33+May%2FJune+2020) |
| [**9709/32** March 2020 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/mathematics/9709-p3/2020-march-9709-32/#q-6) | **Q6** Separable Differential Equation - CIE Pure Mathematics 3 March 2020 Q6 | FRQ | 1 of 2 parts ((a)) | 7 of 8 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=11f225a5-63c6-446a-9114-463175a53c07&question_id=fae2c923-bb6e-444d-ae72-fe065961d377&source_detail=9709%2F32+March+2020) |

## Related topic questions in Differential equations

- [• formulate a simple statement involving a rate of change as a differential equation](https://www.examsci.com/topics/cie-ial/mathematics/9709-p3/differential-equations/formulate-a-simple-statement-involving-a-rate-of-change-as-a-differential-equation/) — 12 question items · 12 papers — 43 marks · 2020–2025
- [• interpret the solution of a differential equation in the context of a problem being modelled by the equation](https://www.examsci.com/topics/cie-ial/mathematics/9709-p3/differential-equations/interpret-the-solution-of-a-differential-equation-in-the-context-of-a-problem-being/) — 13 question items · 12 papers — 41 marks · 2020–2025
- [• use an initial condition to find a particular solution](https://www.examsci.com/topics/cie-ial/mathematics/9709-p3/differential-equations/use-an-initial-condition-to-find-a-particular-solution/) — 45 question items · 42 papers — 302 marks · 2020–2026

## Topic question rules and edge cases

**How many topic questions cover this syllabus point?**

42 question stems cover this subtopic across 42 papers, but only 42 tagged parts and 297 marks belong to it. Other parts of the same questions are assessed under different statements and are excluded from this page.

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The table lists every matching session from 2020–2026. Each row links to the question anchor on the paper page, where the full paper context and practice entry point are available.

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