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HomeCIE IGCSE MathematicsRatio, proportion and rates of change
CIE · IGCSE · Mathematics

Ratio, proportion and rates of change
Practice Questions

4 CIE IGCSE Mathematics questions on Ratio, proportion and rates of change, each with instant feedback and a full examiner-style mark scheme.

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✨ Revision guide includes key terms, worked examples and exam technique for Ratio, proportion and rates of change.

Try 2 sample questions on Ratio, proportion and rates of change

Question 1 · 1 mark · Difficulty 1/3

A recipe for 4 people uses 300g flour. How much for 6 people?

  1. 400g
  2. 450g
  3. 500g
  4. 600g
Show answer & explanation
✓ Answer: B450g
Scale factor = 6/4 = 1.5. Flour = 300 × 1.5 = 450g.
Question 2 · 1 mark · Difficulty 2/3

If 8 workers take 6 days to complete a job, how long would 12 workers take?

  1. 4 days
  2. 9 days
  3. 3 days
  4. 8 days
Show answer & explanation
✓ Answer: A4 days
Inverse proportion: more workers = less time. Total work = 8×6 = 48 worker-days. Time for 12 = 48÷12 = 4 days.
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CIE IGCSE Mathematics: Ratio, proportion and rates of change FAQ

How many CIE IGCSE Mathematics questions on Ratio, proportion and rates of change are there on Kramizo?
Kramizo currently has 4 exam-board-aligned practice questions on Ratio, proportion and rates of change for CIE IGCSE Mathematics, with new questions added every week. Each question gives you instant feedback and a full examiner-style mark scheme that tells you exactly what would earn marks on a real CIE paper. The questions span the full difficulty range — from straightforward recall (level 1) right up to multi-step reasoning and evaluation (level 3) — so the bank works for first-pass revision and final exam-week stress testing alike.
Is Kramizo free for CIE IGCSE students preparing for Mathematics?
Yes — completely free. Every student gets 45 questions a day on the free plan, with no card required and no trial countdown. That free quota works across every subject and every topic in our bank, so you can mix Ratio, proportion and rates of change practice with other Mathematics topics or even switch to a totally different CIE subject without paying anything. Kramizo's optional Pro plan removes the daily cap and adds detailed progress analytics, but the free tier is the real product — used by thousands of GCSE, IGCSE and CSEC students.
Are the Ratio, proportion and rates of change questions aligned to the official CIE IGCSE Mathematics syllabus?
Every question is written against the published CIE IGCSE Mathematics specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CIE paper. Explanations are written in the style of official examiner mark schemes — they tell you what is being awarded marks and why distractors are wrong, not just whether you got it right. The bank is continually refined to match the latest syllabus updates from CIE.
How is Ratio, proportion and rates of change typically tested on CIE IGCSE Mathematics papers?
Ratio, proportion and rates of change appears across multiple question types on real CIE IGCSE Mathematics papers — most commonly as multiple-choice questions in the objective section, structured short-answer questions in the main paper, and occasionally as part of an extended response. Kramizo's practice bank reflects that mix: 4-option MCQs, true/false statements, fill-in-the-blank key terms, multi-select questions, and ordering questions. Working through the bank gives you exposure to every question style examiners actually use.

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