Home Subjects Reasoning Ability

Reasoning Ability

Critical thinking and logical reasoning questions

88 Q 8 Topics Take Mock Test
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Difficulty: All Easy Medium Hard 51–60 of 88
Topics in Reasoning Ability
Q.51 Hard Syllogism
All organic produce is healthy. Some healthy foods are affordable. No expensive item is affordable. Which conclusion is correct?
A All organic produce is affordable
B Some organic produce may not be expensive
C All affordable foods are organic
D Some expensive items are healthy
Correct Answer:  B. Some organic produce may not be expensive
EXPLANATION

Some healthy foods are affordable. Since all organic produce is healthy, some organic produce could be among those affordable healthy foods, hence some organic produce may not be expensive.

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Q.52 Hard Syllogism
All mountains are geographical features. Some geographical features are tourist attractions. All tourist attractions generate revenue. Can we conclude some mountains generate revenue?
A Yes, definitely
B No, we cannot
C Only partially
D Need more information
Correct Answer:  B. No, we cannot
EXPLANATION

Although mountains are geographical features and some geographical features are tourist attractions, we cannot confirm that the mountains which are geographical features are among those that are tourist attractions.

Test
Q.53 Hard Syllogism
All fruits are nutritious. Some nutritious foods are expensive. No expensive food is readily available. Which must be true?
A Some fruits are not readily available
B All fruits are expensive
C Some fruits are readily available
D The information is insufficient
Correct Answer:  D. The information is insufficient
EXPLANATION

While all fruits are nutritious, only some nutritious foods are expensive, so we cannot determine which fruits are expensive and therefore unavailable.

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Q.54 Hard Syllogism
All teachers are knowledgeable. Some knowledgeable people are not wise. Which statement must be true?
A Some teachers are not wise
B All teachers are wise
C No teacher is wise
D Cannot determine the relationship
Correct Answer:  D. Cannot determine the relationship
EXPLANATION

While some knowledgeable people are not wise, we cannot determine if the non-wise ones include teachers or not.

Test
Q.55 Hard Syllogism
Some intelligent people are not ambitious. All ambitious people are successful. Can we conclude that some intelligent people are not successful?
A Yes, definitely
B No, we cannot conclude
C No, the opposite is true
D Only some intelligent people are not successful
Correct Answer:  B. No, we cannot conclude
EXPLANATION

Although some intelligent people are not ambitious, this doesn't mean they are not successful through other means.

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Q.56 Hard Syllogism
All A are B. All B are C. Some C are not D. No D is E. Which of the following must be true?
A Some A are not D
B All A are D
C Some A are E
D No A is E
Correct Answer:  A. Some A are not D
EXPLANATION

Since all A are B, all B are C, and some C are not D, it follows that some A are not D (as some of C are not D).

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Q.57 Hard Syllogism
No metal is a liquid at room temperature. All liquids at room temperature are transparent. Some metals are not transparent. Which conclusion is definitely false?
A All metals are transparent
B Some liquids are metals
C All transparent things are liquids
D Some metals are transparent
Correct Answer:  B. Some liquids are metals
EXPLANATION

Since no metal is a liquid at room temperature, the statement 'Some liquids are metals' is definitely false.

Test
Q.58 Hard Syllogism
All engineers are technical. Some technical people are artists. Some artists are not engineers. Based on this, which is definitely true?
A All engineers are artists
B Some technical people are engineers
C No artist is technical
D All technical people are engineers
Correct Answer:  B. Some technical people are engineers
EXPLANATION

Since all engineers are technical, it means at least some technical people must be engineers.

Test
If in a code MOBILE is written as NRCKDH, then SIMPLE is written as:
A TJNRME
B TJNQME
C SJNQME
D TJMQME
Correct Answer:  B. TJNQME
EXPLANATION

M→N(+1), O→R(+3), B→C(+1), I→K(+2), L→D(+3, wrapping), E→H(+3). For SIMPLE using variable shifts: S→T(+1), I→J(+1), M→N(+1), P→Q(+1), L→M(+1), E→E(0) = TJNQME.

Test
In a circular arrangement of 8 people, P is opposite to T. Q is third to the right of P. R is second to the left of T. Who is sitting between R and Q (going clockwise from R)?
A P
B T
C Cannot be determined
D 4 people
Correct Answer:  C. Cannot be determined
EXPLANATION

With 8 people in circle, opposite means 4 seats apart. If P at position 1, T at position 5. Q third right of P: position 4. R second left of T: position 3. Between R(3) and Q(4) going clockwise: nobody directly, but without complete arrangement, exact answer cannot be determined uniquely.

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