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- Question
Statements: No house is school. All colleges are schools. All schools are teachers.
Conclusions:
- No house is teacher.
- All colleges are teachers.
- Some teachers are not houses.
- No college is house.
Options- A. None follows
- B. Only either I or IV follows
- C. Only II, III and IV follow
- D. All follow
- E. Only either I or IV, and III follow
- Correct Answer
- Only II, III and IV follow
ExplanationAll colleges are schools. No house is school.Since both the premises are universal and one premise is negative, the conclusion must be universal negative and should not contain the middle term. So, it follows that 'No college is house'. Thus, IV follows.
All colleges are schools. All schools are teachers.
Clearly, it follows that 'All colleges are teachers'. Thus, II follows.
No house is school. All schools are teachers.
Since the middle term 'schools' is distributed twice, the conclusion must be particular.
Since one premise is negative, the conclusion must be negative. So, it follows that 'Some teachers are not houses'.
More questions
- 1. B2CD, _____, BCD4, B5CD, BC6D
Options- A. B2C2D
- B. BC3D
- C. B2C3D
- D. BCD7 Discuss
Correct Answer: BC3D
Explanation:
Because the letters are the same, concentrate on the number series, which is a simple 2, 3, 4, 5, 6 series, and follows each letter in order.- 2. Statement: "You should not grant him leave in this week due to exigency of work." - A supervisor advises the administrative officer.
Assumptions:
- Request for leave can be turned down also.
- The supervisor has reviewed the work required to be done during the said period.
Options- A. Only assumption I is implicit
- B. Only assumption II is implicit
- C. Either I or II is implicit
- D. Neither I nor II is implicit
- E. Both I and II are implicit Discuss
Correct Answer: Both I and II are implicit
Explanation:
The advice is given to turn down the request for leave. So, I is implicit. The mention of the 'exigency of work' makes II implicit.- 3. Statements: In a one day cricket match, the total runs made by a team were 200. Out of these 160 runs were made by spinners.
Conclusions:
- 80% of the team consists of spinners.
- The opening batsmen were spinners.
Options- A. Only conclusion I follows
- B. Only conclusion II follows
- C. Either I or II follows
- D. Neither I nor II follows
- E. Both I and II follow Discuss
Correct Answer: Neither I nor II follows
Explanation:
According to the statement, 80% of the total runs were made by spinners. So, I does not follow. Nothing about the opening batsmen is mentioned in the statement. So, II also does not follow.- 4. Statement: "This drink can be had either as it is, or after adding ice to it." - An advertisement.
Assumptions:
- People differ in their preferences.
- Some people will get attracted to the drink as it can be had as it is.
Options- A. Only assumption I is implicit
- B. Only assumption II is implicit
- C. Either I or II is implicit
- D. Neither I nor II is implicit
- E. Both I and II are implicit Discuss
Correct Answer: Both I and II are implicit
Explanation:
The advertisement tells the different ways in which the drink can be had. This means that different people prefer to have it in a different way and that some people would prefer it only because it can be taken in a particular manner. So, both I and II are implicit.- 5. Statements: Some trains are roads. No road is jungle. All flowers are jungles.
Conclusions:
- Some trains are flowers.
- Some trains are jungles.
- Some flowers are trains.
- No road is flower.
Options- A. None follows
- B. Only II follows
- C. Only III follows
- D. Only IV follows
- E. All follow Discuss
Correct Answer: Only IV follows
Explanation:
Some trains are roads. No road is jungle.Since one premise is particular and the other negative, the conclusion must be particular negative and should not contain the middle term. So, it follows that 'Some trains are not jungles'.
No road is jungle. All flowers are jungles.
Since both the premises are universal and one premise is negative, the conclusion must be universal negative and should not contain the middle term. So, it follows that 'No flower is road'. IV is the converse of this conclusion and so it holds.
Some trains are roads, No flower is road.
As discussed above, it follows that 'Some trains are not flowers'.
- 6. SLAPSTICK : LAUGHTER
Options- A. fallacy : dismay
- B. genre : mystery
- C. satire : anger
- D. mimicry : tears
- E. horror : fear Discuss
Correct Answer: horror : fear
Explanation:
Slapstick results in laughter; horror results in fear.- 7. Statement: Since its launching in 1981, Vayudoot has so far accumulated losses amounting to Rs 153 crore.
Courses of Action:
- Vayudoot should be directed to reduce wasteful expenditure and to increase passenger fare.
- An amount of about Rs 300 crore should be provided to Vayudoot to make the airliner economically viable.
Options- A. Only I follows
- B. Only II follows
- C. Either I or II follows
- D. Neither I nor II follows
- E. Both I and II follow Discuss
Correct Answer: Only I follows
Explanation:
Clearly, for better economic gain, losses should be reduced and income increased. So, only course I follows.- 8. Statements: All cars are cats. All fans are cats.
Conclusions:
- All cars are fans
- Some fans are cars.
Options- A. Only conclusion I follows
- B. Only conclusion II follows
- C. Either I or II follows
- D. Neither I nor II follows
- E. Both I and II follow Discuss
Correct Answer: Neither I nor II follows
Explanation:
Since the middle term 'cats' is not distributed even once in the premises, no definite conclusion follows.- 9. Statement: A large number of people in ward X of the city are diagnosed to be suffering from a fatal malaria type.
Courses of Action:
- The city municipal authority should take immediate steps to carry out extensive fumigation in ward X.
- The people in the area should be advised to take steps to avoid mosquito bites.
Options- A. Only I follows
- B. Only II follows
- C. Either I or II follows
- D. Neither I nor II follows
- E. Both I and II follow Discuss
Correct Answer: Both I and II follow
Explanation:
Clearly, prevention from mosquitoes and elimination of mosquitoes are two ways to prevent malaria. So, both the courses follow.- 10. WAITRESS : RESTAURANT
Options- A. doctor : diagnosis
- B. actor : role
- C. driver : truck
- D. teacher : school
- E. author : book Discuss
Correct Answer: teacher : school
Explanation:
A waitress works in a restaurant; a teacher works in a school.
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