Logical Reasoning Test – MCQs Test 9

Consider the following statement: (UPSC 2012, Civil Services, Paper 2)

“Though quite expensive, television is not a luxury item, as one can learn many things through television.”

Which one of the following is a valid inference from the above statement?

Examine the following statements: (UPSC 2012, Civil Services, Paper 2)

(1) I watch TV only if I am bored.

(2) I am never bored when I have my brother’s company.

(3) Whenever I go to the theatre I take my brother along.

Which one of the following conclusions is valid in the context of the above statements?

Examine the following statements: (UPSC 2012, Civil Services, Paper 2)

1. None but students are members of the club.
2. Some members of the club are married persons.
3. All married persons are invited for dance.

Which one of the following conclusions can be drawn from the above statements?

Consider the following statement: (UPSC 2012, Civil Services, Paper 2)

The Third World War, if it ever starts, will end very quickly with the possible end of civilization. It is only the misuse of nuclear power which will trigger it.

Based on the above statement which one of the following inferences is correct?

Four political parties W, X, Y and Z decided to set up a joint candidate for the coming parliamentary elections. The formula agreed by them was the acceptance of a candidate of the most of the parties. For aspiring candidates A, B, C and D approached the parties for their ticket. (UPSC 2012, Civil Services, Paper 2)

A was acceptable to W but not Z.

B was acceptable to Y but not X.

C was acceptable to W and Y.

D was acceptable to W and X.

When candidate B was preferred by W and Z, candidate C was preferred by X and Z and candidate A was acceptable to X but not Y; who got the ticket?

In five flats, one above the other, live five professionals. The professor has to go up to meet his IAS officer friend. The doctor is equally friendly to all, and has to go up as frequently as go down. The engineer has to go up to meet his MLA friend above whose flat lives the professor’s friend. From the ground floor to the top floor, in what order do the five professionals live? (UPSC 2012, Civil Services, Paper 2)

Seven men, A, B, C, D, E, F and G are standing in a queue in that order. Each one is wearing a cap of a different colour like violet, indigo, blue, green, yellow, orange and red. D is able to see in front of him green and blue, but not violet. E can see violet and yellow, but not red. G can see caps of all colours other than orange. If E is wearing an indigo coloured cap, then the colour of the cap worn by F is (UPSC 2013, Civil Services, Paper 2)

There are 50 students admitted to a nursery class. Some students can speak only English and some can speak only Hindi. 10 students can speak both English and Hindi. If the number of students who can speak English is 21, then how many students can speak Hindi, how many can speak only Hindi and how many can speak only English? (UPSC 2014, Civil Services, Paper 2)

Six identical cards are placed on a table. Each card has number ‘1’ marked on one side and number ‘2’ marked on its other side. All the six cards are placed in such a manner that the number ‘1’ is on the upper side. In one try, exactly four (neither more nor less) cards are turned upside down. In how many least number of tries can the cards be turned upside down such that all the six cards show number ‘2’on the upper side? (UPSC 2014, Civil Services, Paper 2)

Examine the following statements: (UPSC 2014, Civil Services, Paper 2)

1. George attends Music classes on Monday.
2. He attends Mathematics classes on Wednesday.
3. His Literature classes are not on Friday.
4. He attends History classes on the day following the day of his Mathematics classes.
5. On Tuesday, he attends his Sports classes.

If he attends just one subject in a day and his Sunday is free, then he is also free on