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CXC · CSEC · Mathematics

Computation
Practice Questions

20 CXC CSEC Mathematics questions on Computation, each with instant feedback and a full examiner-style mark scheme.

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Try 2 sample questions on Computation

Question 1 · 1 mark · Difficulty 2/3

A shopkeeper in Kingston buys a crate of mangoes for $1200 and sells it for $1500. Calculate the percentage profit.

  1. 20%
  2. 25%
  3. 30%
  4. 80%
Show answer & explanation
✓ Answer: B25%
Award 1 mark for correct answer. Profit = $1500 - $1200 = $300. Percentage profit = (300/1200) × 100% = 25%. A is incorrect — student has calculated (300/1500) × 100%. C is incorrect — arithmetic error. D is incorrect — student has calculated selling price as percentage of cost price.
Question 2 · 1 mark · Difficulty 2/3

A farmer in Guyana harvested 2.5 tonnes of rice. He sold 40% of the rice to a mill. How many kilograms of rice did he sell?

  1. 100 kg
  2. 1000 kg
  3. 1500 kg
  4. 2500 kg
Show answer & explanation
✓ Answer: B1000 kg
Award 1 mark for correct answer. 2.5 tonnes = 2500 kg. 40% of 2500 = 0.4 × 2500 = 1000 kg. A is incorrect — student has not converted tonnes to kg. C is incorrect — student calculated 60% instead of 40%. D is incorrect — student did not apply the percentage.
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CXC CSEC Mathematics: Computation FAQ

How many CXC CSEC Mathematics questions on Computation are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Computation for CXC CSEC 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 CXC 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 CXC CSEC 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 Computation practice with other Mathematics topics or even switch to a totally different CXC 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 Computation questions aligned to the official CXC CSEC Mathematics syllabus?
Every question is written against the published CXC CSEC Mathematics specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CXC 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 CXC.
How is Computation typically tested on CXC CSEC Mathematics papers?
Computation appears across multiple question types on real CXC CSEC 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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