List of top Logical Reasoning Questions on Syllogisms

Statements:
(I) All Forces are energies
(II) All energies are powers
(III) No power is heat
Conclusions:
(I) Some forces are definitely not powers
(II) No heat is force

Statements: Some \(M\) are \(L\). All \(H\) are \(W\). Some \(W\) are \(M\).
Conclusions:
I. All \(M\) are \(W\)
II. Some \(H\) are \(L\)
III. Some \(W\) are \(H\)

If 'All sweet things are fluids' and 'Some fluids are coloured things', then it implies -

In the question below are given three statements followed by three conclusions numbered I, II, and III. You have to take the given statements to be true, even if they seem to be at variance from the commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follow/s from the given statements disregarding commonly known facts. Statements:
- Some mountains are hillocks.
- Some mountains are rivers.
- Some mountains are valleys.
Conclusions:
I. All mountains are either hillocks or rivers or valleys.
II. No valley is river.
III. Some rivers are valleys.

Three statements are followed by four conclusions I, II, III, and IV. Take the given statements to be true even if they seem to be at variance with commonly known facts and decide which of the given conclusions logically follow from the given statements. Statements:
1. All animals are vegetables.
2. All fishes are vegetables.
3. All birds are fishes.
Conclusions:
I. Some birds are animals.
II. Some vegetables are fishes.
III. Some vegetables are animals.
IV. All birds are vegetables.

Identify the pattern in the number series and complete the sequence :
2, 5, 10, 17, __, __

Identify the pattern in the number series and complete the sequence :
3, 8, 15, 24, __, __

Statement: Over the past decade, the average temperature in City X has increased by 2 degrees Celsius.
Which of the following can be reasonably inferred from the statement ?

Statement: The company's new marketing strategy led to a 20% increase in sales within the first quarter.
Which of the following assumptions is necessary for this conclusion ?

Argument : The government should invest in renewable energy sources because they are environmentally friendly and can lead to long-term sustainability.
Which of the following, if true, would most strengthen the argument ?

Situation : There is an increasing trend of teenage substance abuse in a community.
Course of Action :

Given the statements: 1. All cats are animals. 2. Some animals are playful. Conclusions: I. Some playful creatures are cats. II. All cats are playful. Select the correct conclusions:

Arrange the following words in lexicographical (dictionary) order from highest to lowest :
1. Sunflower
2. Rainbow
3. Mountain
4. Ocean

Given the statements :
1. All cats are animals.
2. Some animals are playful.
Conclusions :
I. Some playful creatures are cats.
II. All cats are playful.
Select the correct conclusions :

Arrange the following words in lexicographical (dictionary) order from highest to lowest :
1. Elephant
2. Banana
3. Apple
4. Cherry

Given the statements :
1. All smartphones are devices.
2. Some devices are expensive.
Conclusions :
I. Some expensive things are smartphones.
II. All smartphones are expensive.
Select the correct conclusions :

You have to consider the statement and the following assumptions and decide which of the assumptions is implicit in the statement.
Statement: "You are hereby appointed as a programmer with a probation period of one year and your performance will be reviewed at the end of the period for confirmation." - A line in an appointment letter.
Assumptions :
I. The performance of an individual generally is not known at the time of appointment offer.
II. Generally an individual tries to prove his worth in the probation period.

You have to assume everything in the statement to be true, then consider the two conclusions together and decide which of them logically follows beyond a reasonable doubt from the information given in the statement.
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:
I. 80% of the team consists of spinners.
II. The opening batsmen were spinners.

You have to decide which of the arguments is a 'strong' argument and which is a 'weak' argument.
Statement : Should India encourage exports, when most things are insufficient for internal use itself?
Arguments :
I. Yes. We have to earn foreign exchange to pay for our imports.
II. No. Even selective encouragement would lead to shortages.

In the following questions,two statements numbered I and II are given. There may be 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.
Statements : I. The prices of petrol and diesel in the domestic market have remained unchanged for the past few months.
II. The crude oil prices in the international market have gone up substantially in the last few months

In the following questions,two statements numbered I and II are given. There may be 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.
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.

Statements: I. All Actors are Musicians.
II. No Musician is a Singer.
III. Some Singers are Dancers.
IV. Some Dancers are Musicians.

Statements: 1. Some actors are singers.
2. All the singers are dancers.