LR - Logical Connectives - Previous Year CAT/MBA Questions
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Which of the following statement(s) is/are true?
Statement-1: Amla and Sarita never scored goals in the same match.
Statement-2: Harita and Sarita never scored goals in the same match.
- (a)
None of the statements
- (b)
Statement-2 only
- (c)
Statement-1 only
- (d)
Both the statements
Solution
Discuss
ReportAnswer the following question based on the information given below.
A causes B or C, but not both.
F occurs only if B occurs.
D occurs if B or C occurs.
E occurs only if C occurs.
J occurs only if E or F occurs.
D causes G or H or both.
H occurs if E occurs.
G occurs if F occurs.
If A occurs, which may occur?
I. F and G
II. E and H
III. D
- (a)
I only
- (b)
II only
- (c)
III only
- (d)
Either I and III or II and III, but not both.
Which of these may occur as a result of a cause not mentioned?
- (a)
E
- (b)
Both E and F
- (c)
Either B or C
- (d)
J
Direction: In the question below, the main statement is followed by four sentences. Select the pair of sentences that relates logically to the given statement.
Either Sita is sick or she is careless.
A. Sita is not sick.
B. Sita is not careless.
C. Sita is sick.
D. Sita is careless.
- (a)
AB
- (b)
AD
- (c)
BA
- (d)
DA
Direction: In the question below, the main statement is followed by four sentences. Select the pair of sentences that relates logically to the given statement.
Ram gets a swollen nose whenever he eats hamburgers.
A. Ram gets a swollen nose.
B. Ram does not eat hamburgers.
C. Ram does not get a swollen nose.
D. Ram eats hamburgers.
- (a)
AB
- (b)
DC
- (c)
AC
- (d)
CB
Direction: In the question below, the main statement is followed by four sentences. Select the pair of sentences that relates logically to the given statement.
Either the employees have no confidence in the management or they are hostile by nature.
A. They are not hostile by nature.
B. They are hostile by nature.
C. They have confidence in the management.
D. They have no confidence in the management.
- (a)
BA
- (b)
CB
- (c)
DA
- (d)
BD
Direction: In the question below, the main statement is followed by four sentences. Select the pair of sentences that relates logically to the given statement.
Whenever Ram reads late into the night, his father beats him.
A. His father does not beat Ram.
B. Ram reads late into the night.
C. Ram reads early in the morning.
D. Ram's father beats him in the morning.
- (a)
CD
- (b)
BD
- (c)
AB
- (d)
None of these
Direction: In the question below, the main statement is followed by four sentences. Select the pair of sentences that relates logically to the given statement.
All irresponsible parents shout if their children do not cavort.
A. All irresponsible parents do not shout.
B. Children cavort.
C. Children do not cavort.
D. All irresponsible parents shout.
- (a)
AB
- (b)
BA
- (c)
CA
- (d)
All of these
P, Q, R and S are four statements. Relation between these statements is as follows.
I. If P is true, then Q must be true.
II. If Q is true, then R must be true.
III. If S is true, then either Q is false or R is false.
Which of the following must be true?
- (a)
If P is true, then S is false
- (b)
If S is false, then Q must be true
- (c)
If Q is true, then P must be true
- (d)
If R is true, then Q must be true
Direction: In each of the following sentences, the main statement is followed by four sentences each. Select a pair of sentences that relate logically to the given statement.
Whenever Ram hears of a tragedy, he loses sleep.
A. Ram heard of a tragedy.
B. Ram did not hear of a tragedy.
C. Ram lost sleep.
D. Ram did not lose sleep.
- (a)
CA
- (b)
BD
- (c)
DB
- (d)
AD
Direction: In each of the following sentences, the main statement is followed by four sentences each. Select a pair of sentences that relate logically to the given statement.
Either the train is late, or it has derailed.
A. The train is late.
B. The train is not late.
C. The train is derailed.
D. The train is not derailed.
- (a)
AB
- (b)
DB
- (c)
CA
- (d)
BC
Direction: In each of the following sentences, the main statement is followed by four sentences each. Select a pair of sentences that relate logically to the given statement.
When I read a horror story I have a nightmare.
A. I read a story.
B. I did not read a horror story.
C. I did not have a nightmare.
D. I had a nightmare.
- (a)
CB
- (b)
AD
- (c)
BC
- (d)
AC
Direction: In each of the following sentences, the main statement is followed by four sentences each. Select a pair of sentences that relate logically to the given statement.
When I eat berries I get rashes.
A. I ate berries.
B. I did not get rashes.
C. I did not eat berries.
D. I got rashes.
- (a)
DA
- (b)
BC
- (c)
CB
- (d)
None of these