Q.91
Medium
Find the odd one out: ROSE, LILY, SUNFLOWER, CACTUS, DAISY
A
CACTUS
B
SUNFLOWER
C
ROSE
D
LILY
Correct Answer:
A. CACTUS
Explanation:
Rose, Lily, Sunflower, and Daisy are all flowering plants that grow in normal soil. Cactus is a succulent plant that grows in arid/desert conditions.
Q.92
Medium
In a row of 20 students, Raj is 9th from the left. Priya is 5 positions to the right of Raj. What is Priya's position from the right?
Explanation:
Raj is 9th from left. Priya is 5 positions right of Raj, so Priya is 9+5=14th from left. From right: 20-14+1=7th from right.
All trees are plants. No animal is a plant. Which of the following is true?
A
All animals are trees
B
No animal is a tree
C
Some animals are trees
D
All trees are animals
Correct Answer:
B. No animal is a tree
Explanation:
Since all trees are plants and no animal is a plant, logically no animal can be a tree.
Some singers are dancers. Some dancers are actors. Which conclusion is definitely correct?
A
Some singers are actors
B
All singers are actors
C
Some singers may or may not be actors
D
No singer is an actor
Correct Answer:
C. Some singers may or may not be actors
Explanation:
From two 'some' statements, we cannot draw a definite conclusion about the relationship between singers and actors.
All gold is precious. Some precious things are expensive. Can we say 'Some gold is expensive'?
A
Yes, definitely
B
No, it's uncertain
C
No, it's impossible
D
Only some gold is precious
Correct Answer:
B. No, it's uncertain
Explanation:
Although all gold is precious, only some precious things are expensive, so we cannot definitively conclude gold is expensive.
No criminal is honest. Some dishonest people are criminals. What follows?
A
All dishonest people are criminals
B
Some dishonest people are not criminals
C
All criminals are dishonest
D
No dishonest person is honest
Correct Answer:
C. All criminals are dishonest
Explanation:
Since no criminal is honest, it means all criminals must be dishonest (contrapositive of the first statement).
All leaders are decision makers. Some decision makers are not politicians. Which conclusion is valid?
A
Some leaders are not politicians
B
All leaders are politicians
C
Some politicians are decision makers
D
All decision makers are leaders
Correct Answer:
A. Some leaders are not politicians
Explanation:
Since some decision makers are not politicians, and all leaders are decision makers, some leaders must not be politicians.
No student is lazy. All lazy people are unsuccessful. What can be concluded?
A
No student is unsuccessful
B
All students are successful
C
Some students are unsuccessful
D
The conclusion cannot be determined
Correct Answer:
D. The conclusion cannot be determined
Explanation:
While no student is lazy, and lazy people are unsuccessful, this doesn't tell us about unsuccessful students who might be lazy or for other reasons.
All X are Y. No Y is Z. Some Z are W. What is the relationship between X and Z?
A
All X are Z
B
No X is Z
C
Some X are Z
D
X and Z are related through W
Correct Answer:
B. No X is Z
Explanation:
Since all X are Y and no Y is Z, by logical deduction, no X can be Z.
All software engineers are problem solvers. Some problem solvers are not creative. Based on this, which conclusion is possibly true but not definitely true?
A
Some software engineers are creative
B
All software engineers are creative
C
No software engineer is creative
D
Software engineers are not problem solvers
Correct Answer:
A. Some software engineers are creative
Explanation:
While some problem solvers are not creative, some software engineers might still be creative - this is possible but not definite.
