List of top Logical Reasoning Questions

8(6+5) - 10 = ?

A and B together can complete a task in 7 days. B alone can do it in 20 days. What part of the work was carried out by A?
Statement I - A completed the job alone after A and B worked together for 5 days.
Statement II - Part of the work done by A could have been done by B and C together in 6 days.

What is the height of a circular cone?
Statement I - The area of that cone is equal to the area of a rectangle whose length is 33 cm.
Statement II - The area of the base of that cone is 154 sq. cm.

Which of the five trains A, B, C, D and E is the best?
Statement I - D train is better than E train, A train and C train but not as good as B train.
Statement II - D train is better than C train but not as good as B which is better than E train.

Rearrange the following four sentences in proper sequence to form a meaningful paragraph, then answer the questions given below.
1. The history of mankind is full of such fightings between communities, nations and people.
2. From the primitive weapon of warfare, man has advanced to the modern nuclear weapons.
3. Ever since the dawn of civilisation man has been fighting with man.
4. A modern war is scientific in character, but the effect is the same wiping human existence out of this earth.

Identify the diagram that best represents the relationship among classes given below: Males, Fathers, Engineers

If a mirror is placed on the line MN, then which is the right figure of the given image?

What does this symbol mean ^?

Select the figure in which the given figure is hidden.

All Cats are singers. All birds dance. Some Cats are birds. Albert Einstein is a Singer. Examine the following statements:
I. Albert Einstein does not dance
II. Albert Einstein dances
III. Albert Einstein is a bird
IV. Albert Einstein is not a bird
V. Albert Einstein is not a cat
VI. Albert Einstein is a cat
Which of the following conclusion(s) is necessarily correct? Choose the most appropriate answer.

Count the number of cubes in the given figure:

Study the following arrangement carefully and answer the question below:
RES5DAPS3TIQ79B#2K%UIMW4*J8N
Which of the following is exactly in the middle between 3 and 1 in the above arrangement?

Find the missing terms (in order) in the following alphabet series: a, d, c, f,_, h, g, _, i

A statement is followed by two conclusions numbered (I) and (II). Assume everything in the statement to be true. Consider the two conclusions together and decide which of them logically follow/s beyond or reasonable doubt from the information given in the statement.
Statement: Money is a huge motivator for people.
Conclusions:
(I) People can be motivated by some other factors other than money.
(II) People get motivated only when they expect to get some money for doing or behaving in a certain way.

A statement is followed by two courses of action numbers I and II. Assume everything in the statement to be true and on the basis of the information given in the statement, decide which of the suggested courses of action logically follow/s for pursuing.
Statement: There has been a large number of cases of internet hacking in the recent months, which has created panic among the internet users.
Courses of action:
(I) The Government should make all the efforts to catch those who are responsible and put them behind bars.
(II) The internet users should be advised not to use the internet till the hackers are caught.

If A = 20, B = 40, then what will C be equal to?

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.

In the question given below, there are two statements labelled as Assertion (A) and Reason (R). Mark your answer as per the codes provided below:
Assertion (A): A ship rises as it enters the sea from a river.
Reason (R): The density of sea water is higher as compared to river water.

N ranks fifth in a class. S is eighth from the last. T is sixth after N and just in the middle of N and S. How many students are there in the class?

In a certain year, 15 August is on Wednesday and my birthday falls on the 4th Friday of the same month. What is the date of my birthday?

Find the odd term which does not fit into the series given below: G4T, J10R, M20P, P43N, S90L, V185J

A clock is so placed that at 12 noon its minute hand points towards North-East. In which direction does its hour hand point at 3 p.m. or 15 hrs?

Find the wrong term in the following number series: 5, 25, 125, 7, 49, 341, 9, 81, 729

Tejasva met Rakesh who is related to Tejasva because Tejasva is the father of Deepak who is married to Garima. Garima is the daughter of Rakesh. Garima has a daughter named Ishika. How is Tejasva related to Ishika?

If \( A \times B \) means A is the brother of B, \( A + B \) means A is the son of B, \( A - B \) means A is the mother of B, and \( A = B \) means A is the husband of B, which of the following would mean X is the father of Y?