(Online Course) CSAT Paper - II : Logical Reasoning & Analytical Ability: Analytical Reasoning

Logical Reasoning & Analytical Ability

Analytical Reasoning

What is Analytical Reasoning ?

Analytical reasoning involves puzzles in which the relationship among the groups of objects, people, cities and activities etc. is given. In such questions, a bunch of information is given that creates a puzzle in candidate’s mind. The candidates are required to keep in mind these conditions, analyse the relationship and arrange them in suitable form to answer the questions. Such questions may deal with sitting arrangement or scheduling the activities etc.

(1) To solve these questions, candidates need to arrange the complicated set of information. So, read them carefully.
(2) Rather using lengthy expressions, use initials and symbols to save time.
(3) While reading the set of information, highlight the key words.
(4) Now, arrange the set of information in list, table or diagram.
(5) Try to eliminate the answer choices, then work through the remaining choices to get the correct answer.

Directions (Q. Nos. 1 to 5) Read the following information carefully and answer the questions given below.
Six lectures A, B, C, D, E and F are to be organised in a span of seven days from Sunday to Saturday, only one lecture on each day in accordance with the following
(i) A should not be organised on Thursday.
(ii) C should be organised immediately after F.
(iii) There should be a gap of two days between E and D.
(iv) One day there will be no lecture (Friday is not that day), just before that day D will be organised.
(v) B should be organised on Tuesday and should not be followed by D.

Example 1: Which of the following is the last lecture in the series ?
(a) A
(b) B
(c) C
(d) Can’t he determined

Example 2:Which of the following information is not required in finding the complete sequence of organisation of lectures ?
(a) (i) only
(b) (ii) only
(c) (i) and (ii) only
(d) All are required

Example 3: On which day there is no lecture ?
(a) Monday
(b) Friday
(c) Sunday
d) Can’t be determined

Example 4: How many lectures are organised between C and D ?
(a) None
(b) One
(c) Two
(d) Three

Example 5: Which day will the lecture F be organised
(a) Thursday
(b) Friday
(c) Saturday
(d) Sunday

Solutions. (Q. Nos. 1 to 5)

Lectures D X B E F C A
Days Sunday Monday Tuesday Wednesday Thursday Friday Saturday
  1 (a) 2 (d) 3. (a) 4. (d)

5. (a)


Directions (Q. Nos. 6 to 7) P, Q, R and S are four gentlemen who are friends of Eshan. On one Sunday, the four of them visited Eshan at his weekend getaway.
(i) The time of each visit was P at 3 O’clock, Q at 4 O’clock, R at 5 O’clock and S at 6 O’clock.
(ii) At least one gentleman visited Eshan between P and Q.
(iii) At least one of R or S visited Eshan before P.
(iv) R did not visit Eshan between Q and S.

Example 6: Who visited Eshan first ?
(a) P
(b) Q
(c) R
d) S

Example 7: Who visited Eshan last ?
(a) P
(b) Q
(c) R
(d) Data insufficient

Solutions. (Q. Nos. 6 to 7) It is given that P visited at 3 O’clock. Now, form st. 3, we conclude that P visited at 3 pm. Now, from statement (i), we conclude that Q has to visit at 4 am otherwise nobody will be able to visit in between P and Q. Now, if S were to visit at 6 pm, then statement (iv) will get violated, hence we conclude that S visited at 6 am and R visited at 5 pm.
6. (b) 7. (c)

Directions (Q. Nos. 8 to 10) Refer the data below and answer the questions that follow.
(i) P, Q, R, S, T and U are six students of Lovely University out of these 3 are males and 3 are females.
(ii) Two of them study Economics, 2 study Language, one study Telepathy and one study Dance in the group.
(iii) Q, T, R and P are two married couples, each having a different subject of study.
(iv) T, a Telepathy student, wear a black gown, is married to a Language student who is in a brown suit.
(v) 2 people wear black clothes, 2 wear brown clothes and the remaining people wear blue and gray each.
(vi) Both husbands and both wives wear the same coloured clothes respectively.
(vii) P is a male Economic student and S is his twin sister who is also an Economic student.
(viii) Q is a Dancer.

Example 8: Which of the following are the two married ladies ?
(a) T and R
(b) Q and R
(c) Q and T
(d) R and S

Example 9: Who are the married couples ?
(a) PT, QR
(b) PQ, TR
(c) PR, QT
(d) None of these

Example 10: What colour dress does the unmarried lady wear ?
(a) Black
(b) Grey
(c) Blue
(d) Grey or Blue

Solutions. (Q. Nos. 8 to 10)

Student T R P Q S U
Dress Black Brown Brown Black Grey/Blue Blue/Grey
Subject Telepathy Language Economics Dance Economics Language
Gender Female Male Male Female Female Male

S is unmarried female and U is an unmarried male. Colours of dress of both unmarried persons is not known, but it is Grey or Blue.
8. (c)         9. (b)                 10. (d)