9/06/2011 07:39:00 PM
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Dear Reader, In Infosys papers you can expect few syllogism questions where you will be provided with few statements and then you would be asked to pick correct logical conclusions based on the given statements. They are a form of reasoning question which should be easy if you had practiced well. Below are 3 sample questions for your practice. In each of the question two statements would be given followed by two conclusions. You will have to identify which of the options is correct depending upon the conclusions. While reading the statements, conclusions and options, take care that you don't confuse with real world facts.
Question 1
Statement : Some watches are hens. All hens are wall clocks.
Conclusions :
I. All watches are wall clocks
II. some wall clocks are hens.
Options.
a) Only I can be true always
b) Only II can be true always
c) Both I and II can be true always
d) Both I and II cannot be true always
Answer 1
Option b is the correct answer.
Reason : Conclusion I cannot be true as only some watches could be wall clocks. However, conclusion II is true always as some wall clocks have to be hens.
Question 2
All animals are monkeys. All monkeys are reptiles.
Conclusions :
I. All reptiles are animals.
II. All animals are reptiles.
Options.
a) Only I can be true always
b) Only II can be true always
c) Both I and II can be true always
d) Both I and II cannot be true always
Answer 2
Option b is the right answer.
Reason : Though all animals are reptiles from the two statements, there is no indication that all reptiles are monkeys (and in turn animals). Hence option I cannot be true always. But second conclusion is always true which is straightforward to interpret.
Question 3
Some Red Boxes are Green Boxes. All Red Boxes are Yellow Boxes.
Conclusions :
I. Some Yellow Boxes are Green Boxes.
II. All Green Boxes are Red Boxes.
Options.
a) Only I can be true always
b) Only II can be true always
c) Both I and II can be true always
d) Both I and II cannot be true always
Answer 3
Question 1
Statement : Some watches are hens. All hens are wall clocks.
Conclusions :
I. All watches are wall clocks
II. some wall clocks are hens.
Options.
a) Only I can be true always
b) Only II can be true always
c) Both I and II can be true always
d) Both I and II cannot be true always
Answer 1
Option b is the correct answer.
Reason : Conclusion I cannot be true as only some watches could be wall clocks. However, conclusion II is true always as some wall clocks have to be hens.
Question 2
All animals are monkeys. All monkeys are reptiles.
Conclusions :
I. All reptiles are animals.
II. All animals are reptiles.
Options.
a) Only I can be true always
b) Only II can be true always
c) Both I and II can be true always
d) Both I and II cannot be true always
Answer 2
Option b is the right answer.
Reason : Though all animals are reptiles from the two statements, there is no indication that all reptiles are monkeys (and in turn animals). Hence option I cannot be true always. But second conclusion is always true which is straightforward to interpret.
Question 3
Some Red Boxes are Green Boxes. All Red Boxes are Yellow Boxes.
Conclusions :
I. Some Yellow Boxes are Green Boxes.
II. All Green Boxes are Red Boxes.
Options.
a) Only I can be true always
b) Only II can be true always
c) Both I and II can be true always
d) Both I and II cannot be true always
Answer 3
Posted in: Infosys Type 3 Syllogism Questions
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