Q. No birds are fish. All fish are animals. Therefore, no birds are animals. Is this conclusion valid?
A.
Yes
B.
No
C.
Only if all animals are birds
D.
Only if some birds are fish
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Solution
The conclusion is not valid because while no birds are fish, it does not imply that no birds are animals since birds can belong to a different category of animals.
Correct Answer:
B
— No
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Q. No mammals lay eggs. All birds lay eggs. Therefore, no birds are mammals. Is this conclusion valid?
A.
Yes
B.
No
C.
Only if some mammals are birds
D.
Only if all birds are mammals
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Solution
The conclusion is valid because if no mammals lay eggs and all birds lay eggs, it follows that no birds can be mammals.
Correct Answer:
A
— Yes
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Q. Some cars are electric. All electric vehicles are eco-friendly. Therefore, some cars are eco-friendly. Is this conclusion valid?
A.
Yes
B.
No
C.
Only if all cars are electric
D.
Only if some eco-friendly vehicles are not cars
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Solution
The conclusion is valid because if some cars are electric and all electric vehicles are eco-friendly, it follows that those cars that are electric must also be eco-friendly.
Correct Answer:
A
— Yes
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Q. Some fruits are apples. All apples are sweet. Therefore, some fruits are sweet. Is this conclusion valid?
A.
Yes
B.
No
C.
Only if all fruits are apples
D.
Only if some fruits are not sweet
Show solution
Solution
The conclusion is valid because if some fruits are apples and all apples are sweet, it follows that those fruits that are apples must also be sweet.
Correct Answer:
A
— Yes
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Q. Some teachers are not professors. All professors are educated. Therefore, some teachers are not educated. Is this conclusion valid?
A.
Yes
B.
No
C.
Only if all teachers are educated
D.
Only if some professors are not teachers
Show solution
Solution
The conclusion is not valid because just because some teachers are not professors does not imply that those teachers are not educated.
Correct Answer:
B
— No
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Q. What comes next in the pattern: A, C, E, G, ...?
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Solution
The pattern skips one letter each time: A (skip B) C (skip D) E (skip F) G, so next is I.
Correct Answer:
B
— H
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Q. What is the missing number in the series: 1, 1, 2, 3, 5, ...?
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Solution
This is the Fibonacci sequence where the next number is the sum of the two preceding ones: 3 + 5 = 8.
Correct Answer:
A
— 7
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Q. What is the missing number in the series: 5, 10, 20, ?, 80?
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Solution
The pattern is that each number is multiplied by 2. 20 * 2 = 40.
Correct Answer:
B
— 40
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Q. Which number does not belong to the series: 1, 4, 9, 16, 25, 30?
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Solution
All numbers except 30 are perfect squares.
Correct Answer:
D
— 30
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Q. Which number should come next in the series: 1, 1, 2, 3, 5, 8, ?
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Solution
This is the Fibonacci sequence where the next number is the sum of the previous two: 5 + 8 = 13.
Correct Answer:
A
— 10
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Q. Which of the following pairs is not an analogy: Hand: Glove, Foot: Sock, Head: Hat, Arm: Sleeve?
A.
Hand: Glove
B.
Foot: Sock
C.
Head: Hat
D.
Arm: Sleeve
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Solution
An arm does not wear a sleeve; it is the shirt that has sleeves.
Correct Answer:
D
— Arm: Sleeve
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Q. Which of the following pairs is not analogous: Hand: Clock, Leaf: Tree, Wheel: Car, Finger: Hand?
A.
Hand: Clock
B.
Leaf: Tree
C.
Wheel: Car
D.
Finger: Hand
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Solution
Hand is a part of a clock, while the others are parts of their respective whole.
Correct Answer:
A
— Hand: Clock
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