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UCAT Percentages Questions
Practise percentages (quantitative aptitude) for the University Clinical Aptitude Test: 10 multiple-choice questions, each with the correct answer and a worked explanation. Click an option to check it, or “New questions” for another set.
Percentages practice
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Q1.What is 20% of 200?
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Answer: B — 40
20% of 200 = 20/100 × 200 = 40.
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Q2.Two successive discounts of 10% and 15% are equivalent to a single discount of:
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Answer: D — 23.5%
Net discount = a + b − ab/100 = 10 + 15 − 10×15/100 = 23.5%.
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Q3.The price of an item changes from £200 to £216. What is the percentage change?
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Answer: D — 8% increase
Change = 16 on a base of 200: 16/200 × 100 = 8% increase. Always divide by the ORIGINAL value.
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Q4.What is 35% of 80?
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Answer: C — 28
35% of 80 = 35/100 × 80 = 28.
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Q5.What is 5% of 360?
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Answer: D — 18
5% of 360 = 5/100 × 360 = 18.
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Q6.What is 18% of 400?
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Answer: D — 72
18% of 400 = 18/100 × 400 = 72.
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Q7.Two successive discounts of 10% and 10% are equivalent to a single discount of:
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Answer: D — 19%
Net discount = a + b − ab/100 = 10 + 10 − 10×10/100 = 19%.
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Q8.What is 18% of 260?
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Answer: C — 46.8
18% of 260 = 18/100 × 260 = 46.8.
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Q9.Two successive discounts of 15% and 20% are equivalent to a single discount of:
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Answer: C — 32%
Net discount = a + b − ab/100 = 15 + 20 − 15×20/100 = 32%.
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Q10.What is 18% of 720?
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Answer: D — 129.6
18% of 720 = 18/100 × 720 = 129.6.
How to approach percentages questions
Convert percentages to fractions you know by heart (12.5% = 1/8, 37.5% = 3/8, 16.67% = 1/6) and always divide a change by the ORIGINAL value. Two successive changes of a% and b% combine to a + b + ab/100.
About UCAT
University Clinical Aptitude Test — conducted by UCAT Consortium. Aptitude test for medicine and dentistry admissions in the UK and partner universities.
Original practice questions written for this site in the style and difficulty of each exam’s syllabus. They are not past papers and the site is not affiliated with any exam body. Exam patterns, marking schemes and syllabi change — always check the latest official notification.
UCAT practice topics
| Topic | Section | Question source |
|---|---|---|
| Verbal Reasoning & Analogies | Reasoning | Calculated + question bank |
| Data Interpretation | Data interpretation | Calculated (new numbers every set) |
| Logical Reasoning | Reasoning | Calculated (new numbers every set) |
| Percentages | Quantitative aptitude | Calculated (new numbers every set) |