Logical Reasoning Set-4 (Level-3)

Logical reasoning for NMAT: Practice sets for logical reasoning for NMAT exam

Out of all the three sections, the Logical reasoning for NMAT can be the highest scoring section. The trick is identifying all the question types that are asked in the exam and mastering each one of them. The most challenging aspect of this exam is striking a right balance between speed and accuracy as you require a very good speed to crack this exam along with good logical skills. Therefore, here are some practice sets for logical reasoning for NMAT exam that will cover all the important concepts from the exam point of view. Solve these sets diligently and track your progress and speed throughout the preparation pipeline. With goal setting, practice and complete syllabus coverage, you can achieve a high score in logical reasoning for NMAT exam.

Directions for the question set:
Refer to the following information and answer the questions that follow:
‘Kem-kem” is an island in the South Pacific. The inhabitants of “Kem-kem” always answer any question with two sentences. One of which is always true and the other is always false.

Question 1: You are walking on a road and come to a fork. You ask the inhabitants Krishna, Balram and Sita, “Which road will take me to the village?”

Balram says, “I am married to Sita. Take the left road.”
Krishna says, “I never speak to strangers, I am new to these parts”.
Sita says, “I am married to Krishna. He is not new to this place.”

Which of the following is true?
(a) Right road takes you to the village
(b) Left road takes you to the village
(c) Sita is married to Balram
(d) None of these

Question 2: You want to speak to the chief of the village. You question three inhabitants, Amar, Akbar and Antony. Only Akbar is wearing red shirt.

A. Amar says, “I am not Akbar’s son. The chief wears a red shirt.”
B. Akbar says, “I am Amar’s father, Anthony is the chief.”
C. Anthony says, “The chief is one among us. I am the chief.”

Who is the chief ?
(a) Amar
(b) Akbar
(c) Anthony
(d) None of them

Question 3: You find that your boat is stolen. You question three inhabitants of the island and they reply:

Ajinkya says, “I didn’t do it. Dhoni didn’t do it.”
Dhoni says, “I didn’t do it. Krishna didn’t do it.”
Krishna says, “I didn’t do it. I don’t know who did it.”

Who stole your boat? ”
(a) Krishna
(b) Dhoni
(c) Ajinkya
(d) None of them

Question 4: There is only one pilot on the island. You interview three men-Shantanu, Aman and Shivam. You also notice that Shantanu is wearing a cap.

A. Shantanu says, “I am the priest. On this island, only priests can wear caps.”
B. Shivam says, “Aman’s father is the pilot. Aman is not the priest’s son.”
C. Aman says, “I am the priest’s son. Shantanu is not the priest.”

Which of the following is true?
(a) Aman is the priest
(b) Shantanu is the pilot
(c) Shivam is the pilot
(d) Aman is not Shantanu’s son

Answers and Explanations: Click the down arrow to expand

Answers 1: (c) To solve this one needs to proceed further after considering one of the statements to be true and then validating all the other statements spoken by the other inhabitants. The statement which does not contradict with any of the other statements, becomes the true answer.

Here we can see that if we consider Sita’s 2nd statement true then Krishna’s 2nd Statement will be false that will make us easy to solve this question

And if Sita’s 1st statement is false this means that Sita is married to Balram. So, Balram’s 2nd statement is False. As none contradict, we get the following table:

“Sita is married to Balram” is the correct statement. Hence option (c) is correct.

Answers 2: (b) This can be solved by analyzing Anthony’s statements. As he says that he is the chief and the chief is among us (three people) and it is known that only one can be true, then it can surely be said that the 1st statement is true and 2nd is false since if 2nd is true then 1st has to be true by default. Therefore, for Anthony- 1st statement = True 2nd statement = False After this, move on to analyze Akbar’s statements. Since we know that Anthony is not the chief, his 2nd statement is false and hence 1st is right- Akbar is Amar’s father. Therefore, for Akbar- 1st statement = True 2nd statement = False Lastly, proceed to analyze Amar’s statements. We know that he is Akbar’s son. His 1st statement is false and hence 2nd has to be correct. This implies that the chief wears a red shirt. Therefore, for Amar- 1st statement = False 2nd statement = True It is clear that Akbar is the chief. Hence option (b) is correct.

Answers 3: (b) This can be solved by analyzing Krishna’s statements. As he says that “He didn’t do it and that he doesn’t know who did it” and it is known that only one can be true as the other is false, then it can surely be said that the 1st statement is true and 2nd is false since the opposite is not possible [That is, False and True is not possible as if he stole the boat, he will definitely know who did it]. Therefore, for Krishna- 1st statement = True 2nd statement = False

After this, move on to analyze Dhoni’s statements. Since we know that Krishna didn’t do it, his 2nd statement is true and hence 1st is false which means that Dhoni stole the boat. Therefore, for Dhoni- 1st statement = True 2nd statement = False

Lastly, proceed to verify this with Ajinkya’s statements. None of the facts are contradictory here, hence the fact that Dhoni stole the boat is consistent with all the statements. Therefore, for Ajinkya- 1st statement = True 2nd statement = False

It is clear that Dhoni stole the boat. Hence option (b) is correct.

Answers 4: (b)

Option (b) is the only correct statement. To solve this one needs to proceed further after considering one of the statements to be true and then validating all the other statements spoken by the other inhabitants.

The statement which does not contradict with any of the other statements, becomes the true answer.

We can see that this case of true statement is not contradicting with any statement. Hence option (b) is correct.

Extra tips for logical reasoning for NMAT exam:
• It is very important to develop a strategy or an attempt plan that you should abide by in logical reasoning for NMAT exam.
• Use option elimination method wherever applicable to save time.
• Try to make calculated guesses in logical reasoning for NMAT exam as there is no risk of negative marking involved.