Logical Reasoning and Analytical Ability - Online Test

Q1.

Find the number of triangles in the given figure.

Answer : Option C
Explaination / Solution:

The figure may be labelled as shown.

The simplest triangles are AHL, LHG, GHM, HMB, GMF, BMF, BIF, CIF, FNC, CNJ, FNE, NEJ, EKJ and JKD i.e. 14 in number.

The triangles composed of two components each are AGH, BHG, HBF, BFG, HFG, BCF, CJF, CJE, JEF, CFE and JED i.e. 11 in number.

The triangles composed of four components each are ABG, CBG, BCE and CED i.e. 4 in number.

Total number of triangles in the given figure = 14 + 11 + 4 = 29.


Q2. Directions: In each of the following questions, a statement is followed by two course of action. A course of action is taken for redressal, follow up, etc. Read the statement carefully and answer the question.
Statements: Although there is a much more hands-on approach to teaching in the United States of America, there is a deplorable lack of IQ skill development which leads to a very low level of knowledge among school children about what happens outside of the United States.
Course of Action:
I. There has to be an overhaul of the education system with equal focus on skill development and knowledge development.
II. There needs to be an increase in the number of general knowledge lectures by making them compulsory for all schools.
Answer : Option A
Explaination / Solution:

Only I follows: it speaks about knowledge and skill development. IQ and General Knowledge are NOT synonymous. Hence II doesn't follow.

Q3.

Find the number of triangles in the given figure.

Answer : Option D
Explaination / Solution:

The figure may be labelled as shown.

The simplest triangles are APQ, AEQ, QTU, QRU, BGS, BHS, RSU, SUV, TUW, UWX, NWD, WDM, UVY, UXY, JCY and YKC i.e. 16 in number.

The triangles composed of two components each are QUW, QSU, SYU and UWY i.e. 4 in number.

The triangles composed of three components each are AOU, AFU, FBU, BIU, UIC, ULC, ULD and OUD i.e. 8 in number.

The triangles composed of four components each are QYW, QSW, QSY and SYW i.e. 4 in number.

The triangles composed of six components each are AUD, ABU, BUC and DUC i.e. 4 in number.

The triangles composed of seven components each are QMC, ANY, EBW, PSD, CQH, AGY, DSK and BJW i.e. 8 in number.

The triangles composed of twelve components each are ABD, ABC, BCD and ACD i.e. 4 in number.

Thus, there are 16 + 4 + 8 + 4 + 4 + 8 + 4 = 48 triangles in the figure.


Q4. Directions: In each of the following questions, a statement is followed by two course of action. A course of action is taken for redressal, follow up, etc. Read the statement carefully and answer the question.
Statements: Although various efforts have been made over the past 10 years and more recently, over the past couple of years in setting up the infrastructure in various corners of the country to provide electricity, vast stretches of the country still remain devoid of power.
Course of Actions:
I. The infrastructure should not only be installed, but also set to use and maintained and monitored by setting up of a National Energy Inspection body.
II. The government should draft a proposal for 100% FDI in power generation and supply.
Answer : Option A
Explaination / Solution:

The first is logical as the statement talks about the setting up of infrastructure which is ineffective in providing power to many areas. The second does not provide a solution as to why it will help overcome the power problem.

Q5.

Find the number of triangles in the given figure.

Answer : Option C
Explaination / Solution:

The figure may be labelled as shown.

The simplest triangles are ABF, BFG, BCG, CGH, GHD, GED, EFG and AFE i.e. 8 in number.

The triangles composed of two components each are ABG, BGE, AGE, ABE and GCD i.e. 5 in number.

The triangles composed of three components each are BCD, CDE, BED and BCE i.e. 4 in number.

Thus, there are 8 + 5 + 4 = 17 triangles in the figure.


Q6. Directions: In each of the following questions, two statements numbered I and II are given. These may to cause and effect relationship between the two statements. These two statements may be the effect of the same cause or independent causes. These statements may be independent causes without having any relationship. Read both the statements in each question and mark your answer as: 

Statements
I. The government has recently fixed the fees for professional courses offered by the unaided institutions which are much lower than the fees charged last year. 
II. The parents of the aspiring students launched a severe agitation last year protesting against the high fees charged by the unaided institutions.
Answer : Option B
Explaination / Solution:

II. The parents of the aspiring students launched a severe agitation last year protesting against the high fees charged by the unaided institutions.

Q7.

Find the number of triangles in the given figure.

Answer : Option C
Explaination / Solution:

The figure may be labelled as shown.

The simplest triangles are AEH, EHI, EBF, EFI, FGC, IFG, DGH and HIG i.e. 8 in number.

The triangles composed of two components each are HEF, EFG, HFG and EFG i.e. 4 in number.

Thus, there are 8 + 4 = 12 triangles in the figure.


Q8. Directions: In each of the following questions, a question is followed by information given in three statements. You have to study the question along with the statements and decide the information given in which statement(s) are sufficient to answer the question. 

Who is brother-in-law of A? 

I. A is married to brother of B. C is daughter of A. 
II. D and E are the only brothers of B. B is a female. 
III. Only D has no child.
Answer : Option E
Explaination / Solution:

From I & II. A is married either to D or to E. From I, II & III. D has no child and A has a daughter. Hence, E is husband of A. D is the brother-in-law of A.

Q9.

Find the number of triangles in the given figure.

Answer : Option B
Explaination / Solution:

The figure may be labelled as shown.

The simplest triangles are ABG, BCG, CGE, CDE, AGE and AEF i.e. 6 in number.

The triangles composed of two components each are ABE, ABC, BCE and ACE i.e. 4 in number.

There are 6 + 4 = 10 triangles in the figure.


Q10. Directions: Each of the questions below consists of a question and two statements labeled I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give your answer accordingly:
How many students in standard V of our school do not play chess?
I. No girl has interest in chess.
II. In standard V, there are 40 boys.
Answer : Option D
Explaination / Solution:

From both the statements we do not know how many boys do not play chess. Hence, the question can’t be answered.