UCAT — University Clinical Aptitude Test (UK medicine)

UCAT Decision Making, Set 1

Take the UCAT Decision Making, Set 1: 20 multiple-choice questions (30 minutes) with instant scoring and a full answer review. Covers 20 UCAT Decision…

What this test covers

20 UCAT Decision Making

Sample questions with answers

The first 5 questions of this test, with the correct answer and explanation.

Q1. All doctors in the hospital have a medical degree. Some people with a medical degree work in research. Which conclusion must be true?
- A. All researchers are doctors
- B. No doctor in the hospital works in research
- C. Some doctors in the hospital work in research
- D. None of these conclusions is certain from the information given ✓
Answer: D. None of these conclusions is certain from the information given
Explanation: The researchers with degrees may or may not include the hospital's doctors, so none of the specific conclusions is guaranteed.
Q2. All nurses on Ward 5 are trained in first aid. Sara is a nurse on Ward 5. Which conclusion follows?
- A. Everyone trained in first aid works on Ward 5
- B. Sara is trained in first aid ✓
- C. Sara is a doctor
- D. Sara works only on Ward 5
Answer: B. Sara is trained in first aid
Explanation: Sara belongs to a group that is all trained in first aid.
Q3. No reptiles are mammals. All snakes are reptiles. Which conclusion follows?
- A. No snakes are mammals ✓
- B. All reptiles are snakes
- C. Some snakes are mammals
- D. Some mammals are snakes
Answer: A. No snakes are mammals
Explanation: Every snake is a reptile, and no reptile is a mammal.
Q4. Some students are athletes. All athletes train every morning. Which conclusion must be true?
- A. Some students train every morning ✓
- B. All students train every morning
- C. No students train every morning
- D. All people who train every morning are athletes
Answer: A. Some students train every morning
Explanation: The students who are athletes must train every morning.
Q5. The Venn diagram shows the subjects taken by 50 students. How many students take Biology?
- A. 17
- B. 22 ✓
- C. 20
- D. 12
Answer: B. 22
Explanation: Biology region total: 12 + 5 + 3 + 2 = 22.

The other 15 questions

Take the timed test (free, no sign-up) to see your score and the answer and explanation for every question.

Q6. Using the Venn diagram, how many students take exactly two of the three subjects?
- A. 12
- B. 9
- C. 14
- D. 2
Q7. Using the Venn diagram, how many students take Chemistry but not Physics?
- A. 16
- B. 9
- C. 14
- D. 20
Q8. Using the Venn diagram, a student is chosen at random. What is the probability that they take all three subjects?
- A. 0.16
- B. 0.04
- C. 0.2
- D. 0.02
Q9. Four patients, A, B, C and D, are seen one after another. A is seen before B. D is seen immediately after C. B is seen last. Who is seen first?
- A. Either A or C
- B. C, definitely
- C. A, definitely
- D. D
Q10. Five friends sit in a row. Ali sits at one end. Bilal sits next to Ali. Dua sits in the middle. Esa is not next to Dua. Where does Esa sit?
- A. Next to Ali
- B. At the other end from Ali
- C. In the middle
- D. Next to Bilal
Q11. A clinic is open Monday to Friday. Dr Khan works three days in a row and never on Monday. Dr Ali works only on the days Dr Khan does not. Which day must Dr Ali work?
- A. Wednesday
- B. Tuesday
- C. Monday
- D. Friday
Q12. A bag contains 3 red and 2 blue counters. Two are taken without replacement. What is the probability that both are blue?
- A. 4/25
- B. 1/10
- C. 2/5
- D. 1/5
Q13. A test is 90% accurate. Out of 200 tests, how many would you expect to give a wrong result?
- A. 180
- B. 10
- C. 20
- D. 18
Q14. A hospital says: "Every patient who completed the programme reduced their blood pressure." Which conclusion is best supported?
- A. The programme lowers blood pressure for everyone
- B. Blood pressure medicine is no longer needed
- C. No patient dropped out of the programme
- D. The programme may help lower blood pressure, but patients who dropped out are not described
Q15. A manager argues: "Our new website has more visitors, so our sales will increase." Which assumption does this argument depend on?
- A. The website is expensive
- B. Competitors have fewer visitors
- C. Sales were high before
- D. More visitors will lead to more purchases
Q16. Should medical students spend time working in rural clinics? Which is the strongest argument for YES?
- A. Yes: it gives experience of conditions and communities they might not otherwise see
- B. Yes: rural areas are quieter
- C. Yes: cities are too expensive
- D. Yes: everyone likes travelling
Q17. Should hospitals ban visitors during flu season? Which is the strongest argument for NO?
- A. No: visitors bring flowers
- B. No: flu is not real
- C. No: visits support patients' wellbeing, and infection control measures can reduce the risk
- D. No: hospitals are large
Q18. If it rains, the outdoor event is cancelled. The outdoor event was not cancelled. Which conclusion follows?
- A. It will rain tomorrow
- B. It rained
- C. The event was moved indoors
- D. It did not rain
Q19. In a class, 60% of students play cricket and 30% play football. No student plays both. What percentage of students play neither?
- A. 90%
- B. 0%
- C. 10%
- D. 30%
Q20. Two fair dice are rolled. What is the probability that the total is greater than 9?
- A. 5/36
- B. 1/12
- C. 1/4
- D. 1/6