Basic Ability Test Basic Ability (Cognitive) 5 — Questions and Answers
Question 1: All mammals are warm-blooded. Dolphins are mammals. Which conclusion must be true?
- All warm-blooded animals are dolphins
- Dolphins are warm-blooded (Correct answer)
- Dolphins are fish
- Warm-blooded animals are all mammals
Correct answer: Dolphins are warm-blooded
By syllogistic reasoning, if all mammals are warm-blooded and dolphins are mammals, then dolphins must be warm-blooded.
Question 2: A square has a diagonal of 10 cm. What is the area of the square?
- 25 cm²
- 50 cm² (Correct answer)
- 70.7 cm²
- 100 cm²
Correct answer: 50 cm²
For a square with diagonal d, area = d² ÷ 2 = 100 ÷ 2 = 50 cm².
Question 3: Which word is most similar in meaning to AMBIGUOUS?
- Clear
- Uncertain (Correct answer)
- Decisive
- Firm
Correct answer: Uncertain
Ambiguous means open to more than one interpretation, making 'uncertain' the closest synonym.
Question 4: Look at the number pattern: 100, 91, 83, 76, 70, ___. What comes next?
- 63
- 64
- 65 (Correct answer)
- 66
Correct answer: 65
The differences are −9, −8, −7, −6, −5; so 70 − 5 = 65.
Question 5: A bag contains 5 red balls, 3 blue balls, and 2 green balls. What is the probability of randomly picking a blue ball?
- 1/5
- 3/10 (Correct answer)
- 1/3
- 2/5
Correct answer: 3/10
There are 3 blue balls out of 10 total, so the probability is 3/10.
Question 6: A pilot is to an airplane as a captain is to a ___.
- Port
- Anchor
- Ship (Correct answer)
- Crew
Correct answer: Ship
A pilot operates an airplane; by the same relationship, a captain operates a ship.
Question 7: If you fold a square piece of paper in half twice and then cut a small triangle from the folded corner, how many holes will the paper have when unfolded?
- 1
- 2
- 3
- 4 (Correct answer)
Correct answer: 4
Folding twice creates 4 layers; cutting through the corner affects all 4 layers symmetrically, producing 4 holes.
Basic Ability Test Basic Ability (Cognitive) 5
All mammals are warm-blooded.
Dolphins are mammals.
Which conclusion must be true?