Topic - Logical Reasoning

Answer Key available ?

Source - CAT Prep Forums ]]>

Topic - Logical Reasoning

Answer Key available ?

Source - CAT Prep Forums ]]>

A) Manoj Singh does not own Audi. Audi's owner teaches Economics.

B) Binny has a Skoda car.

C) Mr Garg lives in house number 3.

D) Mr Sharma is the professor of Ethics.

E) The person who bought car in 2001 is HR professor and his car is not BMW.

F) Vinay is the professor of Finance.

G) Mr Tewari did not buy his car in 2004. The person who bought the car in 2004 is living in the house which is to the immediate west of the person who bought the car in 2002.

H) Sachin's house number is 4.

Who bought the car in 2004?

a) Vinay

b) Binny

c) Manoj

d) Sachin

[Answer - Option A]

]]>Who wore the red saree?

[Answer: Ms West Bengal]

]]>a) Ankita got the third position

b) Bhagyashree got the fourth position

c) Chanchal got the second position

d) Devroop stood first

e) Esha got the fourth position

[Answer: Option A]

]]>[Answer: Suresh]

]]>I. Section A had the largest contingent.

II. Section B had fewer students than Section A

III. Section C’s contingent was smaller than Section B.

IV. Section D had the smallest contingent

V. The product of the number of the students from each section is a multiple of 10.

VI. The number of students from section C is more than 2

VII. The product of the number of students from each section is a multiple of 24.

VIII. The largest contingent has more than 4 students.

IX. Each section contributed different number of students

The statements that taken together can give us the exact number of students from each section:

a) I, II, III, IV, VI

b) I, VI, VIII, IX

c) I, II, III, IV, V, VI

d) I, II, III, IV, VI, VII

e) I, IV, V, VI, VII, IX

[Answer: Option E]

Explanation: The group consists of 15 students and 4 teachers initially. 1 teacher could not join. That makes it 3 teachers. Some students could not join. That makes it a maximum of 14 students. Since the product of the number of students from all sections is a multiple of 24 and 10 both, the possible value is 120. The number of students is each of the section is 2,3, 4 and 5. Further, from the given information, it can be concluded that A has 5 students, C has 3 students, B has 4 students and D has 2 student. The statements that are needed to exactly find the number of students from each section are 1,4,5, 6,7 and 9. Hence, option e

]]>- Rajesh is taller than Ramesh.
- Rajesh is neither the tallest nor the heaviest.
- Rakesh is the second lightest person among the six friends.
- Ramesh is neither the shortest nor the lightest and occupies the even number place in height when arranged in descending order.
- One of the friends is the tallest as well as the third lightest.
- Ramesh is heavier than Rakesh.
- In one of the height and weight parameters, Rishi was second highest followed by Rupesh. One of the friends occupy the same place in the list of height and weight when arranged in descending orders.

Over time, the heights and weights of each of the friends changed but the positions of the friends with respect to height and weight remained the same. Which of the following is definitely true?

a) The BMI of Rupesh is greater than that of Rajesh

b) The BMI of Rishikesh is less than that of Rakesh

c) The BMI of Rupesh is greater than that of Rishikesh

d) The BMI of Ramesh is greater than that of Rakesh

Which of the following is the correct order of BMI?

a) Rakesh > Rupesh > Rajesh > Rishikesh

b) Rupesh > Rakesh > Rajesh > Rishikesh

c) Rakesh > Rupesh > Rishikesh > Rajesh

d) Rupesh > Rakesh > Rishikesh > Rajesh

[Answer : Option C, Option A]

]]>[Answer: 3]

]]>Ramesh said that Suresh is not an alter.

Mahesh said that Ramesh is an alter.

Who among the following is Knave?

a) Suresh

b) Ramesh

c) Mahesh

d) Cannot be determined

[Answer: Option A]

]]>Q1. If Saurabh works with one particular guard twice during the week, then which guard works on the same day as Jasneet?

a. Vikram

b. Saurabh

c. Puneet

d. Cannot be determined

Q2. If Saurabh works with a different guard every time during the week, then which two guards work on Thursday?

a. Saurabh and Puneet

b. Saurabh and Jasneet

c. Saurabh and Vikram

d. Cannot be determined

Q3. Which of the following statements cannot be true?

a. Saurabh and Puneet work together on Thursday.

b. Vikram and Jasneet work together on Thursday.

c. Puneet and Saurabh work together on Saturday.

d. Saurabh and Vikram work together on Thursday.

Q4. If Vikram works on Saturday with Saurabh, then which two guards work on Tuesday?

a. Vikram and Jasneet

b. Jasneet and Saurabh

c. Vikram and Saurabh

d. Either (a) or (b)

[Answer: Option A, Option D, Option B, Option D]

]]>i) Faneesh finishes before Ashok.

ii) Divya finishes before Benjamin and Eshant.

iii) Irravaty finishes after Chetan.

iv) Girish finishes after Ashok.

Which is the best position Girish can finish?

[Answer: 3]

]]>Cn for n = 1,2,3…… the operation is that every letter is written with n steps ahead. For example ASIA when performed with C1 will be BTJB and then it will also be written in reverse order to form the word BJTB.

- What will be the code of the word MADAM if the operations C0 and C3 are performed?
- If operations C0,C1,C3 are performed the word becomes IRFKIL. What is the original word?

[Answer - 1) QCHCQ 2) GFFCMF]

]]>Which of the following score is not possible to achieve in the paper?

(a) 29

(b) 31

(c) 33

(d) 47A student scores 41 marks in all. How many questions has he attempted atleast?

A, B, C and D are four students what can be the maximum difference between the scores of (A + B) and (C + D).

OA:

1 - D

2 - 7

3 - 100

- The number of people having only one of these, only 2 of these and only 3 of these are in the ratio 3 : 2 : 1.
- Number of people having only Laptop is same as those having only Smart Phone which is one less than the number of people having all the three gadgets.
- All those who have Laptop and Tablet have Smart phone as well.
- Number of people having Laptop an Tablet is 10. These people were surveyed again in 2016 and it was found that the number of people own Laptop increased by 50% and those owning tablets by 60%.

The number of people having Smart Phone in 2015 are

Find difference between some of all possible values of No of people having both smart phone and laptop but not tablet and no of people having both smart phone and tablet but no laptop.

[OA: 39 , 8]

]]>The minimum number of rooms required to hold the conference is (a) 2 (b) 3 (c) 4 (d) 5

If only two rooms are available which of the following sessions if removed – the conference can take place (a) Session C or P

(b) Session F or M

(c) Session C and P

(d) Session D and P

[OA: C, C]

]]>Table 1 lists a triplet each comprising minimum, average and maximum rating for each feature across products.

Table 2 lists the minimum and maximum rating given by each expert to individual products across features.

Table 3 lists average of ratings given to each feature by each expert across products.

How many points E2 gives to P1 in F2

How many points E3 gives to P2 in F3

What is the average of rating given by E1 to P1 in all 3 features.

sum of all the ratings given by E2.

[OA: 1 - 4, 2 - 7, 3 - 5.33, 4- 35]

This is a difficult set and video question is available in reply section.

]]>[OA: 2]

]]>3 got B and 2 got W.

every B will see 2 B and 2 W. Can any of the B, figure out if they are wearing B or W? It can be anything.

However, one wearing W, will see 1W and 3B, so they know, they had to be wearing W to make it atleast 2.

Only two people will know for sure their own hat colour. ]]>

It is also known that:

The first person in the queue pays 14 for the ticket. He is not Pankaj.

The persons who pay 11 and 15 for the tickets are from Ramgarh and Jamgarh respectively.

The ticket of Ojal, who is standing between Nakul and Rajiv, is cheaper than that of exactly three persons.

Ojal is from neither Aamgarh nor Wangarh.

The person standing immediately in front of Motilal is from Ramgarh and the one immediately behind Motilal is from Wangarh. Pankaj, who is not from Jamgarh, pays more for the ticket than Nakul, who is not from Aamgarh.

Whose hometown is Wangarh?

(a) Motilal

(b) Nakul

(c) Pankaj

(d) Rajivwhich of the following is the correct order of the ticket prices for Motilal, Nakul, Ojal, Pankaj and Rajiv respectively?

(a) 14, 11, 12, 13 and 15

(c) 13, 14, 12, 11 and 15

(b) 15, 11, 12, 13 and 14

(d) None of theseFrom the front of the queue, what are the positions of Motilal and Nakul respectively?

(a) 2nd and 3rd

(b) 2nd and 4th

(c) 4th and 3rd

(d) 3rd and 4

[OA: CBC]

]]>(i) F3 was the first one to read Fragmented Frames, and F1 was not the last one to read the same.

(ii)The first book read by each of the four friends was not the one which he/she had bought.

(iii) The 2nd and the 3rd books read by F2 were Eternal Romantic and Fragmented Frames respectively.

(IV) The 3rd book read by F4 was Unlikely Hero. The last book read by F3 was Eternal Romantic.

(V) The last person who read Magic Island was not F2.

Who among the following did certainly not buy Magic Island?

(a) F1

(b) F4

(c) F2

(d) F3Which was the first book read by F1?

(a) Unlikely Hero

(b) Magic Island

(c) Eternal Romantic

(d) Fragmented Frames

[OA: C, A]

]]>I asked him how old they were. "The product of their ages is 72," he answered.

Quizzically, I asked, "Is there anything else you can tell me?"

"Yes," he replied, "the sum of their ages is equal to the number of my house."

I stepped outside to see what the house number was.

Upon returning inside, I said to my host, "I'm sorry, but I still can't figure out their ages."

He responded apologetically, "I'm sorry, I forgot to mention that my oldest daughter likes strawberry shortcake."

With this information, I was able to determine all three of their ages. How old is each daughter?

[OA: 8, 3, 3]

]]>The Maharashtrian lives in the red house.

The Rajasthani owns the dog.

Coffee is drunk in the green house.

The Bihari drinks tea.

The green house is immediately to the right of the white house.

The hockey player owns a Cat.

The football player lives in the yellow house.

Milk is drunk in the middle house.

The Punjabi lives in the first house on the left.

The table tennis player lives in the house next to the man with the Camel.

The football player lives next to the house where the horse is kept.

The basketball player drinks orange juice.

The person from MP likes Cricket.

The Punjabi lives next to the blue house.

The Punjabi plays which sport?

a. Table tennis

b. Football

c. Cricket

d. HockeyWho drinks orange juice?

a. Punjabi

b. Maharashtrian

c. Bihari

d. RajasthaniWho lives in the red house?

a. MP

b. Punjabi

c. Maharashtrian

d. Rajasthani

[OA: Football, Rajasthani, Maharastrian]

]]>X, Y and Z play in that order one after the other, starting with X, till all the match sticks are picked up. Each person plays such that, to the extent possible, he does not lose even if the other two players collude.

How many match sticks should X and Y respectively pick, in their first chance, so that Z is certain to lose if X and Y play with common objective of making Z lose? There were 7 matchsticks to start with.

a. (1, 1)

b. (1, 2)

c. (2, 1)

d. (2, 2)If there are 5 matchsticks at some point of time in the game, and you are told that Y later lost the game, then whose turn was to pick up matchsticks at that point of time?

a. X

b. Y

c. Z

d. Cannot be uniquely determinedWhat is the smallest number of matchsticks greater than 5 at the beginning, that would ensure that Z will lose given that X and Y work towards making Z lose?

a. 7

b. 8

c. 9

d. 6

If the mystery novel is written by Ovattio then who can be the publisher of the comedy novel?

(a) Purshottam or Quattchori

(b) Only Purshottam

(c) Purshottam or Rajveer

(d) Purshottam or Rajveer or SarkarHow many combinations of publisher and author are possible for the mystery novel?

(a) 6

(b) 3

(c) 4

(d) 5

[OA: B, C]

]]>- A lives 5 floors above B.
- H lives on the only floor between C and E.
- D and F live on adjacent floors.
- B does not live on the 1st floor.

‘N’ is defined as the difference between the floor numbers of C and D.

How many different values of ‘N’ are possible?

(a) 4

(b) 8

(c) 6

(d) 5

[OA: D]

]]>